LayoutLib: use tags in logs.

Change-Id: Ib85272249d285ecef409bf063903bcd91514a424

24 files changed, 165 insertions, 101 deletions

diff --git a/tools/layoutlib/bridge/src/android/graphics/BitmapFactory.java b/tools/layoutlib/bridge/src/android/graphics/BitmapFactory.java
index 096498b..eb9487e 100644
--- a/tools/layoutlib/bridge/src/android/graphics/BitmapFactory.java
+++ b/tools/layoutlib/bridge/src/android/graphics/BitmapFactory.java
@@ -18,6 +18,7 @@ package android.graphics;
 
 import com.android.ide.common.rendering.api.ResourceDensity;
 import com.android.layoutlib.bridge.Bridge;
+import com.android.layoutlib.bridge.BridgeConstants;
 
 import android.content.res.AssetManager;
 import android.content.res.Resources;
@@ -351,7 +352,7 @@ public class BitmapFactory {
                 If the exception happened on open, bm will be null.
                 If it happened on close, bm is still valid.
             */
-            Bridge.getLog().error(null,
+            Bridge.getLog().error(BridgeConstants.TAG_RESOURCES_READ,
                     String.format("Error decoding bitmap of id 0x%x", id), e);
         } finally {
             try {
@@ -451,7 +452,7 @@ public class BitmapFactory {
         Bitmap  bm;
 
         if (is instanceof AssetManager.AssetInputStream) {
-            Bridge.getLog().error(null,
+            Bridge.getLog().error(BridgeConstants.TAG_UNSUPPORTED,
                     "Bitmap.decodeStream: " +
                     "InputStream is unsupported (AssetManager.AssetInputStream)");
             return null;
diff --git a/tools/layoutlib/bridge/src/android/graphics/BitmapShader_Delegate.java b/tools/layoutlib/bridge/src/android/graphics/BitmapShader_Delegate.java
index 75b8f99..9d62415 100644
--- a/tools/layoutlib/bridge/src/android/graphics/BitmapShader_Delegate.java
+++ b/tools/layoutlib/bridge/src/android/graphics/BitmapShader_Delegate.java
@@ -17,6 +17,7 @@
 package android.graphics;
 
 import com.android.layoutlib.bridge.Bridge;
+import com.android.layoutlib.bridge.BridgeConstants;
 import com.android.layoutlib.bridge.impl.DelegateManager;
 
 import android.graphics.Shader.TileMode;
@@ -112,7 +113,8 @@ public class BitmapShader_Delegate extends Shader_Delegate {
             try {
                 canvasMatrix = xform.createInverse();
             } catch (java.awt.geom.NoninvertibleTransformException e) {
-                Bridge.getLog().error(null, "Unable to inverse matrix in BitmapShader", e);
+                Bridge.getLog().fidelityWarning(BridgeConstants.TAG_MATRIX,
+                        "Unable to inverse matrix in BitmapShader", e);
                 canvasMatrix = new java.awt.geom.AffineTransform();
             }
 
@@ -120,7 +122,8 @@ public class BitmapShader_Delegate extends Shader_Delegate {
             try {
                 localMatrix = localMatrix.createInverse();
             } catch (java.awt.geom.NoninvertibleTransformException e) {
-                Bridge.getLog().error(null, "Unable to inverse matrix in BitmapShader", e);
+                Bridge.getLog().fidelityWarning(BridgeConstants.TAG_MATRIX,
+                        "Unable to inverse matrix in BitmapShader", e);
                 localMatrix = new java.awt.geom.AffineTransform();
             }
 
diff --git a/tools/layoutlib/bridge/src/android/graphics/Bitmap_Delegate.java b/tools/layoutlib/bridge/src/android/graphics/Bitmap_Delegate.java
index dd57bd1..6acae7c 100644
--- a/tools/layoutlib/bridge/src/android/graphics/Bitmap_Delegate.java
+++ b/tools/layoutlib/bridge/src/android/graphics/Bitmap_Delegate.java
@@ -18,6 +18,7 @@ package android.graphics;
 
 import com.android.ide.common.rendering.api.ResourceDensity;
 import com.android.layoutlib.bridge.Bridge;
+import com.android.layoutlib.bridge.BridgeConstants;
 import com.android.layoutlib.bridge.impl.DelegateManager;
 
 import android.graphics.Bitmap.Config;
@@ -248,7 +249,8 @@ public final class Bitmap_Delegate {
 
     /*package*/ static boolean nativeCompress(int nativeBitmap, int format, int quality,
             OutputStream stream, byte[] tempStorage) {
-        Bridge.getLog().error(null, "Bitmap.compress() is not supported");
+        Bridge.getLog().error(BridgeConstants.TAG_UNSUPPORTED,
+                "Bitmap.compress() is not supported");
         return true;
     }
 
@@ -383,7 +385,7 @@ public final class Bitmap_Delegate {
     /*package*/ static Bitmap nativeCreateFromParcel(Parcel p) {
         // This is only called by Bitmap.CREATOR (Parcelable.Creator<Bitmap>), which is only
         // used during aidl call so really this should not be called.
-        Bridge.getLog().error(null,
+        Bridge.getLog().error(BridgeConstants.TAG_UNSUPPORTED,
                 "AIDL is not suppored, and therefore Bitmaps cannot be created from parcels.");
         return null;
     }
@@ -392,7 +394,7 @@ public final class Bitmap_Delegate {
             int density, Parcel p) {
         // This is only called when sending a bitmap through aidl, so really this should not
         // be called.
-        Bridge.getLog().error(null,
+        Bridge.getLog().error(BridgeConstants.TAG_UNSUPPORTED,
                 "AIDL is not suppored, and therefore Bitmaps cannot be written to parcels.");
         return false;
     }
@@ -408,7 +410,7 @@ public final class Bitmap_Delegate {
         Paint_Delegate paint = Paint_Delegate.getDelegate(nativePaint);
 
         if (paint != null && paint.getMaskFilter() != null) {
-            Bridge.getLog().fidelityWarning(null,
+            Bridge.getLog().fidelityWarning(BridgeConstants.TAG_MASKFILTER,
                     "MaskFilter not supported in Bitmap.extractAlpha",
                     null);
         }
diff --git a/tools/layoutlib/bridge/src/android/graphics/Canvas_Delegate.java b/tools/layoutlib/bridge/src/android/graphics/Canvas_Delegate.java
index 26b43cd..cafe52d 100644
--- a/tools/layoutlib/bridge/src/android/graphics/Canvas_Delegate.java
+++ b/tools/layoutlib/bridge/src/android/graphics/Canvas_Delegate.java
@@ -17,6 +17,7 @@
 package android.graphics;
 
 import com.android.layoutlib.bridge.Bridge;
+import com.android.layoutlib.bridge.BridgeConstants;
 import com.android.layoutlib.bridge.impl.DelegateManager;
 import com.android.layoutlib.bridge.impl.GcSnapshot;
 
@@ -422,7 +423,7 @@ public final class Canvas_Delegate {
 
         if (matrixDelegate.hasPerspective()) {
             assert false;
-            Bridge.getLog().fidelityWarning(null,
+            Bridge.getLog().fidelityWarning(BridgeConstants.TAG_MATRIX,
                     "android.graphics.Canvas#setMatrix(android.graphics.Matrix) only " +
                     "supports affine transformations.", null);
         }
@@ -492,7 +493,8 @@ public final class Canvas_Delegate {
         }
 
         if (filterDelegate.isSupported() == false) {
-            Bridge.getLog().fidelityWarning(null, filterDelegate.getSupportMessage(), null);
+            Bridge.getLog().fidelityWarning(BridgeConstants.TAG_DRAWFILTER,
+                    filterDelegate.getSupportMessage(), null);
         }
     }
 
diff --git a/tools/layoutlib/bridge/src/android/graphics/LinearGradient_Delegate.java b/tools/layoutlib/bridge/src/android/graphics/LinearGradient_Delegate.java
index 9fb48c80..37d2c81 100644
--- a/tools/layoutlib/bridge/src/android/graphics/LinearGradient_Delegate.java
+++ b/tools/layoutlib/bridge/src/android/graphics/LinearGradient_Delegate.java
@@ -17,6 +17,7 @@
 package android.graphics;
 
 import com.android.layoutlib.bridge.Bridge;
+import com.android.layoutlib.bridge.BridgeConstants;
 import com.android.layoutlib.bridge.impl.DelegateManager;
 
 import android.graphics.Shader.TileMode;
@@ -135,7 +136,8 @@ public final class LinearGradient_Delegate extends Gradient_Delegate {
             try {
                 canvasMatrix = xform.createInverse();
             } catch (java.awt.geom.NoninvertibleTransformException e) {
-                Bridge.getLog().error(null, "Unable to inverse matrix in LinearGradient", e);
+                Bridge.getLog().fidelityWarning(BridgeConstants.TAG_MATRIX,
+                        "Unable to inverse matrix in LinearGradient", e);
                 canvasMatrix = new java.awt.geom.AffineTransform();
             }
 
@@ -143,7 +145,8 @@ public final class LinearGradient_Delegate extends Gradient_Delegate {
             try {
                 localMatrix = localMatrix.createInverse();
             } catch (java.awt.geom.NoninvertibleTransformException e) {
-                Bridge.getLog().error(null, "Unable to inverse matrix in LinearGradient", e);
+                Bridge.getLog().fidelityWarning(BridgeConstants.TAG_MATRIX,
+                        "Unable to inverse matrix in LinearGradient", e);
                 localMatrix = new java.awt.geom.AffineTransform();
             }
 
diff --git a/tools/layoutlib/bridge/src/android/graphics/Matrix_Delegate.java b/tools/layoutlib/bridge/src/android/graphics/Matrix_Delegate.java
index c1f34dc..6d6c599 100644
--- a/tools/layoutlib/bridge/src/android/graphics/Matrix_Delegate.java
+++ b/tools/layoutlib/bridge/src/android/graphics/Matrix_Delegate.java
@@ -18,6 +18,7 @@ package android.graphics;
 
 
 import com.android.layoutlib.bridge.Bridge;
+import com.android.layoutlib.bridge.BridgeConstants;
 import com.android.layoutlib.bridge.impl.DelegateManager;
 
 import android.graphics.Matrix.ScaleToFit;
@@ -612,7 +613,7 @@ public final class Matrix_Delegate {
     /*package*/ static boolean native_setPolyToPoly(int native_object, float[] src, int srcIndex,
             float[] dst, int dstIndex, int pointCount) {
         // FIXME
-        Bridge.getLog().fidelityWarning(null,
+        Bridge.getLog().fidelityWarning(BridgeConstants.TAG_UNSUPPORTED,
                 "Matrix.setPolyToPoly is not supported.",
                 null);
         return false;
diff --git a/tools/layoutlib/bridge/src/android/graphics/NinePatch_Delegate.java b/tools/layoutlib/bridge/src/android/graphics/NinePatch_Delegate.java
index 5524f4f..385def3 100644
--- a/tools/layoutlib/bridge/src/android/graphics/NinePatch_Delegate.java
+++ b/tools/layoutlib/bridge/src/android/graphics/NinePatch_Delegate.java
@@ -17,6 +17,7 @@
 package android.graphics;
 
 import com.android.layoutlib.bridge.Bridge;
+import com.android.layoutlib.bridge.BridgeConstants;
 import com.android.layoutlib.bridge.impl.DelegateManager;
 import com.android.layoutlib.bridge.impl.GcSnapshot;
 import com.android.ninepatch.NinePatchChunk;
@@ -196,10 +197,12 @@ public final class NinePatch_Delegate {
                     sChunkCache.put(array, new SoftReference<NinePatchChunk>(chunk));
                 }
             } catch (IOException e) {
-                Bridge.getLog().error(null, "Failed to deserialize NinePatchChunk content.", e);
+                Bridge.getLog().error(BridgeConstants.TAG_BROKEN,
+                        "Failed to deserialize NinePatchChunk content.", e);
                 return null;
             } catch (ClassNotFoundException e) {
-                Bridge.getLog().error(null, "Failed to deserialize NinePatchChunk class.", e);
+                Bridge.getLog().error(BridgeConstants.TAG_BROKEN,
+                        "Failed to deserialize NinePatchChunk class.", e);
                 return null;
             } finally {
                 if (ois != null) {
diff --git a/tools/layoutlib/bridge/src/android/graphics/Paint_Delegate.java b/tools/layoutlib/bridge/src/android/graphics/Paint_Delegate.java
index 43cf91a..7db3486 100644
--- a/tools/layoutlib/bridge/src/android/graphics/Paint_Delegate.java
+++ b/tools/layoutlib/bridge/src/android/graphics/Paint_Delegate.java
@@ -17,6 +17,7 @@
 package android.graphics;
 
 import com.android.layoutlib.bridge.Bridge;
+import com.android.layoutlib.bridge.BridgeConstants;
 import com.android.layoutlib.bridge.impl.DelegateManager;
 
 import android.graphics.Paint.FontMetrics;
@@ -179,7 +180,7 @@ public class Paint_Delegate {
                     return stroke;
                 }
             } else {
-                Bridge.getLog().fidelityWarning(null,
+                Bridge.getLog().fidelityWarning(BridgeConstants.TAG_PATHEFFECT,
                         effectDelegate.getSupportMessage(),
                         null);
             }
@@ -375,7 +376,8 @@ public class Paint_Delegate {
     /*package*/ static void nSetShadowLayer(Paint thisPaint, float radius, float dx, float dy,
             int color) {
         // FIXME
-        Bridge.getLog().fidelityWarning(null, "Paint.setShadowLayer is not supported.", null);
+        Bridge.getLog().fidelityWarning(BridgeConstants.TAG_UNSUPPORTED,
+                "Paint.setShadowLayer is not supported.", null);
     }
 
     /*package*/ static float getTextSize(Paint thisPaint) {
@@ -691,7 +693,8 @@ public class Paint_Delegate {
         // since none of those are supported, display a fidelity warning right away
         ColorFilter_Delegate filterDelegate = delegate.getColorFilter();
         if (filterDelegate != null && filterDelegate.isSupported() == false) {
-            Bridge.getLog().fidelityWarning(null, filterDelegate.getSupportMessage(), null);
+            Bridge.getLog().fidelityWarning(BridgeConstants.TAG_COLORFILTER,
+                    filterDelegate.getSupportMessage(), null);
         }
 
         return filter;
@@ -729,7 +732,8 @@ public class Paint_Delegate {
         // since none of those are supported, display a fidelity warning right away
         MaskFilter_Delegate filterDelegate = delegate.getMaskFilter();
         if (filterDelegate != null && filterDelegate.isSupported() == false) {
-            Bridge.getLog().fidelityWarning(null, filterDelegate.getSupportMessage(), null);
+            Bridge.getLog().fidelityWarning(BridgeConstants.TAG_MASKFILTER,
+                    filterDelegate.getSupportMessage(), null);
         }
 
         return maskfilter;
@@ -759,7 +763,8 @@ public class Paint_Delegate {
         // since none of those are supported, display a fidelity warning right away
         Rasterizer_Delegate rasterizerDelegate = delegate.getRasterizer();
         if (rasterizerDelegate != null && rasterizerDelegate.isSupported() == false) {
-            Bridge.getLog().fidelityWarning(null, rasterizerDelegate.getSupportMessage(), null);
+            Bridge.getLog().fidelityWarning(BridgeConstants.TAG_RASTERIZER,
+                    rasterizerDelegate.getSupportMessage(), null);
         }
 
         return rasterizer;
diff --git a/tools/layoutlib/bridge/src/android/graphics/Path_Delegate.java b/tools/layoutlib/bridge/src/android/graphics/Path_Delegate.java
index 8a50b34..ad9c9f9 100644
--- a/tools/layoutlib/bridge/src/android/graphics/Path_Delegate.java
+++ b/tools/layoutlib/bridge/src/android/graphics/Path_Delegate.java
@@ -17,6 +17,7 @@
 package android.graphics;
 
 import com.android.layoutlib.bridge.Bridge;
+import com.android.layoutlib.bridge.BridgeConstants;
 import com.android.layoutlib.bridge.impl.DelegateManager;
 
 import android.graphics.Path.Direction;
@@ -695,7 +696,7 @@ public final class Path_Delegate {
     public void transform(Matrix_Delegate matrix, Path_Delegate dst) {
         if (matrix.hasPerspective()) {
             assert false;
-            Bridge.getLog().fidelityWarning(null,
+            Bridge.getLog().fidelityWarning(BridgeConstants.TAG_MATRIX,
                     "android.graphics.Path#transform() only " +
                     "supports affine transformations.", null);
         }
diff --git a/tools/layoutlib/bridge/src/android/graphics/PorterDuffXfermode_Delegate.java b/tools/layoutlib/bridge/src/android/graphics/PorterDuffXfermode_Delegate.java
index b7d5dc9..b09806c 100644
--- a/tools/layoutlib/bridge/src/android/graphics/PorterDuffXfermode_Delegate.java
+++ b/tools/layoutlib/bridge/src/android/graphics/PorterDuffXfermode_Delegate.java
@@ -17,6 +17,7 @@
 package android.graphics;
 
 import com.android.layoutlib.bridge.Bridge;
+import com.android.layoutlib.bridge.BridgeConstants;
 import com.android.layoutlib.bridge.impl.DelegateManager;
 
 import java.awt.AlphaComposite;
@@ -72,7 +73,8 @@ public class PorterDuffXfermode_Delegate extends Xfermode_Delegate {
             }
         }
 
-        Bridge.getLog().error(null, String.format("Unknown PorterDuff.Mode: %d", mode));
+        Bridge.getLog().error(BridgeConstants.TAG_BROKEN,
+                String.format("Unknown PorterDuff.Mode: %d", mode));
         assert false;
         return PorterDuff.Mode.SRC_OVER;
     }
@@ -114,7 +116,7 @@ public class PorterDuffXfermode_Delegate extends Xfermode_Delegate {
                 return AlphaComposite.getInstance(AlphaComposite.XOR, falpha);
         }
 
-        Bridge.getLog().fidelityWarning(null,
+        Bridge.getLog().fidelityWarning(BridgeConstants.TAG_BROKEN,
                 String.format("Unsupported PorterDuff Mode: %s", mode.name()),
                 null);
 
diff --git a/tools/layoutlib/bridge/src/android/graphics/RadialGradient_Delegate.java b/tools/layoutlib/bridge/src/android/graphics/RadialGradient_Delegate.java
index 1f6f4b4..c86e808 100644
--- a/tools/layoutlib/bridge/src/android/graphics/RadialGradient_Delegate.java
+++ b/tools/layoutlib/bridge/src/android/graphics/RadialGradient_Delegate.java
@@ -17,6 +17,7 @@
 package android.graphics;
 
 import com.android.layoutlib.bridge.Bridge;
+import com.android.layoutlib.bridge.BridgeConstants;
 import com.android.layoutlib.bridge.impl.DelegateManager;
 
 import android.graphics.Shader.TileMode;
@@ -124,7 +125,8 @@ public class RadialGradient_Delegate extends Gradient_Delegate {
             try {
                 canvasMatrix = xform.createInverse();
             } catch (java.awt.geom.NoninvertibleTransformException e) {
-                Bridge.getLog().error(null, "Unable to inverse matrix in RadialGradient", e);
+                Bridge.getLog().fidelityWarning(BridgeConstants.TAG_MATRIX,
+                        "Unable to inverse matrix in RadialGradient", e);
                 canvasMatrix = new java.awt.geom.AffineTransform();
             }
 
@@ -132,7 +134,8 @@ public class RadialGradient_Delegate extends Gradient_Delegate {
             try {
                 localMatrix = localMatrix.createInverse();
             } catch (java.awt.geom.NoninvertibleTransformException e) {
-                Bridge.getLog().error(null, "Unable to inverse matrix in RadialGradient", e);
+                Bridge.getLog().fidelityWarning(BridgeConstants.TAG_MATRIX,
+                        "Unable to inverse matrix in RadialGradient", e);
                 localMatrix = new java.awt.geom.AffineTransform();
             }
 
diff --git a/tools/layoutlib/bridge/src/android/graphics/Region_Delegate.java b/tools/layoutlib/bridge/src/android/graphics/Region_Delegate.java
index 33c2aed..b587563 100644
--- a/tools/layoutlib/bridge/src/android/graphics/Region_Delegate.java
+++ b/tools/layoutlib/bridge/src/android/graphics/Region_Delegate.java
@@ -17,6 +17,7 @@
 package android.graphics;
 
 import com.android.layoutlib.bridge.Bridge;
+import com.android.layoutlib.bridge.BridgeConstants;
 import com.android.layoutlib.bridge.impl.DelegateManager;
 
 import android.os.Parcel;
@@ -415,7 +416,7 @@ public class Region_Delegate {
     /*package*/ static int nativeCreateFromParcel(Parcel p) {
         // This is only called by Region.CREATOR (Parcelable.Creator<Region>), which is only
         // used during aidl call so really this should not be called.
-        Bridge.getLog().error(null,
+        Bridge.getLog().error(BridgeConstants.TAG_UNSUPPORTED,
                 "AIDL is not suppored, and therefore Regions cannot be created from parcels.");
         return 0;
     }
@@ -424,7 +425,7 @@ public class Region_Delegate {
                                                       Parcel p) {
         // This is only called when sending a region through aidl, so really this should not
         // be called.
-        Bridge.getLog().error(null,
+        Bridge.getLog().error(BridgeConstants.TAG_UNSUPPORTED,
                 "AIDL is not suppored, and therefore Regions cannot be written to parcels.");
         return false;
     }
diff --git a/tools/layoutlib/bridge/src/android/graphics/SweepGradient_Delegate.java b/tools/layoutlib/bridge/src/android/graphics/SweepGradient_Delegate.java
index 970e781..9a84bdd 100644
--- a/tools/layoutlib/bridge/src/android/graphics/SweepGradient_Delegate.java
+++ b/tools/layoutlib/bridge/src/android/graphics/SweepGradient_Delegate.java
@@ -17,6 +17,7 @@
 package android.graphics;
 
 import com.android.layoutlib.bridge.Bridge;
+import com.android.layoutlib.bridge.BridgeConstants;
 import com.android.layoutlib.bridge.impl.DelegateManager;
 
 /**
@@ -116,7 +117,8 @@ public class SweepGradient_Delegate extends Gradient_Delegate {
             try {
                 canvasMatrix = xform.createInverse();
             } catch (java.awt.geom.NoninvertibleTransformException e) {
-                Bridge.getLog().error(null, "Unable to inverse matrix in SweepGradient", e);
+                Bridge.getLog().fidelityWarning(BridgeConstants.TAG_MATRIX,
+                        "Unable to inverse matrix in SweepGradient", e);
                 canvasMatrix = new java.awt.geom.AffineTransform();
             }
 
@@ -124,7 +126,8 @@ public class SweepGradient_Delegate extends Gradient_Delegate {
             try {
                 localMatrix = localMatrix.createInverse();
             } catch (java.awt.geom.NoninvertibleTransformException e) {
-                Bridge.getLog().error(null, "Unable to inverse matrix in SweepGradient", e);
+                Bridge.getLog().fidelityWarning(BridgeConstants.TAG_MATRIX,
+                        "Unable to inverse matrix in SweepGradient", e);
                 localMatrix = new java.awt.geom.AffineTransform();
             }
 
diff --git a/tools/layoutlib/bridge/src/android/graphics/Typeface_Delegate.java b/tools/layoutlib/bridge/src/android/graphics/Typeface_Delegate.java
index 11e1ca7..c7d5490 100644
--- a/tools/layoutlib/bridge/src/android/graphics/Typeface_Delegate.java
+++ b/tools/layoutlib/bridge/src/android/graphics/Typeface_Delegate.java
@@ -17,6 +17,7 @@
 package android.graphics;
 
 import com.android.layoutlib.bridge.Bridge;
+import com.android.layoutlib.bridge.BridgeConstants;
 import com.android.layoutlib.bridge.impl.DelegateManager;
 import com.android.layoutlib.bridge.impl.FontLoader;
 
@@ -125,12 +126,14 @@ public final class Typeface_Delegate {
     }
 
     /*package*/ static synchronized int nativeCreateFromAsset(AssetManager mgr, String path) {
-        Bridge.getLog().fidelityWarning(null, "Typeface.createFromAsset() is not supported.", null);
+        Bridge.getLog().fidelityWarning(BridgeConstants.TAG_UNSUPPORTED,
+                "Typeface.createFromAsset() is not supported.", null);
         return 0;
     }
 
     /*package*/ static synchronized int nativeCreateFromFile(String path) {
-        Bridge.getLog().fidelityWarning(null, "Typeface.createFromFile() is not supported.", null);
+        Bridge.getLog().fidelityWarning(BridgeConstants.TAG_UNSUPPORTED,
+                "Typeface.createFromFile() is not supported.", null);
         return 0;
     }
 
diff --git a/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/Bridge.java b/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/Bridge.java
index 7713f4b..e42f51c 100644
--- a/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/Bridge.java
+++ b/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/Bridge.java
@@ -262,7 +262,7 @@ public final class Bridge extends com.android.ide.common.rendering.api.Bridge {
             }
         } catch (Throwable throwable) {
             if (log != null) {
-                log.error(null,
+                log.error(BridgeConstants.TAG_BROKEN,
                         "Failed to load com.android.internal.R from the layout library jar",
                         throwable);
             }
diff --git a/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/BridgeConstants.java b/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/BridgeConstants.java
index 194687e..f8e7592 100644
--- a/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/BridgeConstants.java
+++ b/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/BridgeConstants.java
@@ -64,4 +64,18 @@ public class BridgeConstants {
     public final static String MATCH_PARENT = "match_parent";
     public final static String FILL_PARENT = "fill_parent";
     public final static String WRAP_CONTENT = "wrap_content";
+
+    public final static String TAG_UNSUPPORTED = "unsupported";
+    public static final String TAG_BROKEN = "broken";
+    public final static String TAG_RESOURCES_RESOLVE = "resources.resolve";
+    public final static String TAG_RESOURCES_READ = "resources.read";
+    public final static String TAG_RESOURCES_FORMAT = "resources.format";
+    public static final String TAG_MATRIX = "matrix";
+    public final static String TAG_MASKFILTER = "maskfilter";
+    public static final String TAG_DRAWFILTER = "drawfilter";
+    public static final String TAG_PATHEFFECT = "patheffect";
+    public static final String TAG_COLORFILTER = "colorfilter";
+    public static final String TAG_RASTERIZER = "rasterizer";
+    public static final String TAG_SHADER = "shader";
+    public static final String TAG_XFERMODE = "xfermode";
 }
diff --git a/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/android/BridgeContext.java b/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/android/BridgeContext.java
index 28a690b..11a0552 100644
--- a/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/android/BridgeContext.java
+++ b/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/android/BridgeContext.java
@@ -336,7 +336,8 @@ public final class BridgeContext extends Activity {
             isPlatformFile = false;
         } else if (set != null) { // null parser is ok
             // really this should not be happening since its instantiated in Bridge
-            Bridge.getLog().error(null, "Parser is not a BridgeXmlBlockParser!");
+            Bridge.getLog().error(BridgeConstants.TAG_BROKEN,
+                    "Parser is not a BridgeXmlBlockParser!");
             return null;
         }
 
@@ -705,7 +706,7 @@ public final class BridgeContext extends Activity {
         // This is normal if the resource is an ID that is generated automatically.
         // For other resources, we output a warning
         if ("+id".equals(resType) == false && "+android:id".equals(resType) == false) { //$NON-NLS-1$ //$NON-NLS-2$
-            Bridge.getLog().warning("resources", //$NON-NLS-1$
+            Bridge.getLog().warning(BridgeConstants.TAG_RESOURCES_RESOLVE,
                     "Couldn't resolve resource @" +
                     (frameworkOnly ? "android:" : "") + resType + "/" + resName);
         }
diff --git a/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/android/BridgeInflater.java b/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/android/BridgeInflater.java
index 36aa335..c739b4f 100644
--- a/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/android/BridgeInflater.java
+++ b/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/android/BridgeInflater.java
@@ -178,7 +178,7 @@ public final class BridgeInflater extends LayoutInflater {
 
                         return inflate(bridgeParser, root);
                     } catch (Exception e) {
-                        Bridge.getLog().error(null,
+                        Bridge.getLog().error(BridgeConstants.TAG_RESOURCES_READ,
                                 "Failed to parse file " + f.getAbsolutePath(), e);
 
                         return null;
diff --git a/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/android/BridgeResources.java b/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/android/BridgeResources.java
index a56800c..eacfed6 100644
--- a/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/android/BridgeResources.java
+++ b/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/android/BridgeResources.java
@@ -142,6 +142,7 @@ public final class BridgeResources extends Resources {
             try {
                 return ResourceHelper.getColor(value.getValue());
             } catch (NumberFormatException e) {
+                Bridge.getLog().error(BridgeConstants.TAG_RESOURCES_FORMAT, e.getMessage(), e);
                 return 0;
             }
         }
@@ -172,10 +173,15 @@ public final class BridgeResources extends Resources {
 
                         return ColorStateList.createFromXml(this,
                                 new BridgeXmlBlockParser(parser, mContext, resValue.isFramework()));
+                    } catch (XmlPullParserException e) {
+                        Bridge.getLog().error(BridgeConstants.TAG_BROKEN,
+                                "Failed to configure parser for " + value, e);
+                        // we'll return null below.
                     } catch (Exception e) {
                         // this is an error and not warning since the file existence is checked before
                         // attempting to parse it.
-                        Bridge.getLog().error(null, "Failed to parse file " + value, e);
+                        Bridge.getLog().error(BridgeConstants.TAG_RESOURCES_READ,
+                                "Failed to parse file " + value, e);
 
                         return null;
                     }
@@ -185,6 +191,8 @@ public final class BridgeResources extends Resources {
                         int color = ResourceHelper.getColor(value);
                         return ColorStateList.valueOf(color);
                     } catch (NumberFormatException e) {
+                        Bridge.getLog().error(BridgeConstants.TAG_RESOURCES_FORMAT,
+                                "Failed to convert " + value + " into a ColorStateList", e);
                         return null;
                     }
                 }
@@ -243,7 +251,7 @@ public final class BridgeResources extends Resources {
                     return new BridgeXmlBlockParser(parser, mContext, mPlatformResourceFlag[0]);
                 }
             } catch (XmlPullParserException e) {
-                Bridge.getLog().error(null,
+                Bridge.getLog().error(BridgeConstants.TAG_BROKEN,
                         "Failed to configure parser for " + value.getValue(), e);
                 // we'll return null below.
             } catch (FileNotFoundException e) {
@@ -278,7 +286,7 @@ public final class BridgeResources extends Resources {
                     return new BridgeXmlBlockParser(parser, mContext, mPlatformResourceFlag[0]);
                 }
             } catch (XmlPullParserException e) {
-                Bridge.getLog().error(null,
+                Bridge.getLog().error(BridgeConstants.TAG_BROKEN,
                         "Failed to configure parser for " + value.getValue(), e);
                 // we'll return null below.
             } catch (FileNotFoundException e) {
diff --git a/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/android/BridgeTypedArray.java b/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/android/BridgeTypedArray.java
index 7f11897..79b3a73 100644
--- a/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/android/BridgeTypedArray.java
+++ b/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/android/BridgeTypedArray.java
@@ -25,6 +25,7 @@ import com.android.layoutlib.bridge.impl.ResourceHelper;
 
 import org.kxml2.io.KXmlParser;
 import org.xmlpull.v1.XmlPullParser;
+import org.xmlpull.v1.XmlPullParserException;
 
 import android.content.res.ColorStateList;
 import android.content.res.Resources;
@@ -205,9 +206,10 @@ public final class BridgeTypedArray extends TypedArray {
                 if (i != null) {
                     result |= i.intValue();
                 } else {
-                    Bridge.getLog().warning(null, String.format(
-                            "Unknown constant \"%s\" in attribute \"%2$s\"",
-                            keyword, mNames[index]));
+                    Bridge.getLog().warning(BridgeConstants.TAG_RESOURCES_RESOLVE,
+                            String.format(
+                                "Unknown constant \"%s\" in attribute \"%2$s\"",
+                                keyword, mNames[index]));
                 }
             }
             return result;
@@ -235,9 +237,10 @@ public final class BridgeTypedArray extends TypedArray {
             try {
                 return Float.parseFloat(s);
             } catch (NumberFormatException e) {
-                Bridge.getLog().warning(null, String.format(
-                        "Unable to convert \"%s\" into a float in attribute \"%2$s\"",
-                        s, mNames[index]));
+                Bridge.getLog().warning(BridgeConstants.TAG_RESOURCES_RESOLVE,
+                        String.format(
+                            "Unable to convert \"%s\" into a float in attribute \"%2$s\"",
+                            s, mNames[index]));
 
                 // we'll return the default value below.
             }
@@ -267,9 +270,7 @@ public final class BridgeTypedArray extends TypedArray {
         try {
             return ResourceHelper.getColor(s);
         } catch (NumberFormatException e) {
-            Bridge.getLog().warning(null, String.format(
-                    "Unable to convert \"%s\" into a color in attribute \"%2$s\"",
-                    s, mNames[index]));
+            Bridge.getLog().error(BridgeConstants.TAG_RESOURCES_FORMAT, e.getMessage(), e);
 
             // we'll return the default value below.
         }
@@ -298,17 +299,10 @@ public final class BridgeTypedArray extends TypedArray {
             return null;
         }
 
-        try {
-            int color = ResourceHelper.getColor(value);
-            return ColorStateList.valueOf(color);
-        } catch (NumberFormatException e) {
-            // if it's not a color value, we'll attempt to read the xml based color below.
-        }
-
         // let the framework inflate the ColorStateList from the XML file.
-        try {
-            File f = new File(value);
-            if (f.isFile()) {
+        File f = new File(value);
+        if (f.isFile()) {
+            try {
                 KXmlParser parser = new KXmlParser();
                 parser.setFeature(XmlPullParser.FEATURE_PROCESS_NAMESPACES, true);
                 parser.setInput(new FileReader(f));
@@ -318,19 +312,26 @@ public final class BridgeTypedArray extends TypedArray {
                         // FIXME: we need to know if this resource is platform or not
                         new BridgeXmlBlockParser(parser, mContext, false));
                 return colorStateList;
+            } catch (XmlPullParserException e) {
+                Bridge.getLog().error(BridgeConstants.TAG_BROKEN,
+                        "Failed to configure parser for " + value, e);
+                return null;
+            } catch (Exception e) {
+                // this is an error and not warning since the file existence is checked before
+                // attempting to parse it.
+                Bridge.getLog().error(BridgeConstants.TAG_RESOURCES_READ,
+                        "Failed to parse file " + value, e);
+
+                return null;
             }
-        } catch (Exception e) {
-            // this is an error and not warning since the file existence is checked before
-            // attempting to parse it.
-            Bridge.getLog().error(null, "Failed to parse file " + value, e);
-
-            return null;
         }
 
-        // looks like were unable to resolve the color value.
-        Bridge.getLog().warning(null, String.format(
-                "Unable to resolve color value \"%1$s\" in attribute \"%2$s\"",
-                value, mNames[index]));
+        try {
+            int color = ResourceHelper.getColor(value);
+            return ColorStateList.valueOf(color);
+        } catch (NumberFormatException e) {
+            Bridge.getLog().error(BridgeConstants.TAG_RESOURCES_FORMAT, e.getMessage(), e);
+        }
 
         assert false;
 
@@ -358,9 +359,10 @@ public final class BridgeTypedArray extends TypedArray {
             try {
                 return Integer.parseInt(s);
             } catch (NumberFormatException e) {
-                Bridge.getLog().warning(null, String.format(
-                        "Unable to convert \"%s\" into a integer in attribute \"%2$s\"",
-                        s, mNames[index]));
+                Bridge.getLog().warning(BridgeConstants.TAG_RESOURCES_RESOLVE,
+                        String.format(
+                            "Unable to convert \"%s\" into a integer in attribute \"%2$s\"",
+                            s, mNames[index]));
 
                 // The default value is returned below.
             }
@@ -407,9 +409,10 @@ public final class BridgeTypedArray extends TypedArray {
         }
 
         // looks like we were unable to resolve the dimension value
-        Bridge.getLog().warning(null, String.format(
-                "Unable to resolve dimension value \"%1$s\" in attribute \"%2$s\"",
-                s, mNames[index]));
+        Bridge.getLog().warning(BridgeConstants.TAG_RESOURCES_RESOLVE,
+                String.format(
+                    "Unable to resolve dimension value \"%1$s\" in attribute \"%2$s\"",
+                    s, mNames[index]));
 
         assert false;
 
@@ -538,9 +541,10 @@ public final class BridgeTypedArray extends TypedArray {
         }
 
         // looks like we were unable to resolve the fraction value
-        Bridge.getLog().warning(null, String.format(
-                "Unable to resolve fraction value \"%1$s\" in attribute \"%2$s\"",
-                value, mNames[index]));
+        Bridge.getLog().warning(BridgeConstants.TAG_RESOURCES_RESOLVE,
+                String.format(
+                    "Unable to resolve fraction value \"%1$s\" in attribute \"%2$s\"",
+                    value, mNames[index]));
 
         assert false;
 
@@ -649,8 +653,9 @@ public final class BridgeTypedArray extends TypedArray {
             return idValue.intValue();
         }
 
-        Bridge.getLog().warning(null, String.format(
-                "Unable to resolve id \"%1$s\" for attribute \"%2$s\"", value, mNames[index]));
+        Bridge.getLog().warning(BridgeConstants.TAG_RESOURCES_RESOLVE,
+                String.format(
+                    "Unable to resolve id \"%1$s\" for attribute \"%2$s\"", value, mNames[index]));
 
         assert false;
 
@@ -686,9 +691,10 @@ public final class BridgeTypedArray extends TypedArray {
         }
 
         // looks like we were unable to resolve the drawable
-        Bridge.getLog().warning(null, String.format(
-                "Unable to resolve drawable \"%1$s\" in attribute \"%2$s\"", stringValue,
-                mNames[index]));
+        Bridge.getLog().warning(BridgeConstants.TAG_RESOURCES_RESOLVE,
+                String.format(
+                    "Unable to resolve drawable \"%1$s\" in attribute \"%2$s\"", stringValue,
+                    mNames[index]));
 
         assert false;
 
@@ -717,9 +723,10 @@ public final class BridgeTypedArray extends TypedArray {
             return new CharSequence[] { value };
         }
 
-        Bridge.getLog().warning(null, String.format(
-                String.format("Unknown value for getTextArray(%d) => %s", //DEBUG
-                index, mResourceData[index].getName())));
+        Bridge.getLog().warning(BridgeConstants.TAG_RESOURCES_RESOLVE,
+                String.format(
+                    String.format("Unknown value for getTextArray(%d) => %s", //DEBUG
+                    index, mResourceData[index].getName())));
 
         return null;
     }
diff --git a/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/impl/AnimationThread.java b/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/impl/AnimationThread.java
index 033e065..2bd7cc7 100644
--- a/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/impl/AnimationThread.java
+++ b/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/impl/AnimationThread.java
@@ -159,7 +159,6 @@ public abstract class AnimationThread extends Thread {
         } catch (Throwable throwable) {
             // can't use Bridge.getLog() as the exception might be thrown outside
             // of an acquire/release block.
-            mSession.getLog().error(null, "Error playing animation", throwable);
             mListener.done(Status.ERROR_UNKNOWN.createResult("Error playing animation", throwable));
 
         } finally {
diff --git a/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/impl/GcSnapshot.java b/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/impl/GcSnapshot.java
index 72773c8..94075dc 100644
--- a/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/impl/GcSnapshot.java
+++ b/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/impl/GcSnapshot.java
@@ -17,6 +17,7 @@
 package com.android.layoutlib.bridge.impl;
 
 import com.android.layoutlib.bridge.Bridge;
+import com.android.layoutlib.bridge.BridgeConstants;
 
 import android.graphics.Bitmap_Delegate;
 import android.graphics.Canvas;
@@ -728,7 +729,7 @@ public class GcSnapshot {
                         customShader = true;
                     }
                 } else {
-                    Bridge.getLog().fidelityWarning(null,
+                    Bridge.getLog().fidelityWarning(BridgeConstants.TAG_SHADER,
                             shaderDelegate.getSupportMessage(),
                             null);
                 }
@@ -762,7 +763,7 @@ public class GcSnapshot {
                         customXfermode = true;
                     }
                 } else {
-                    Bridge.getLog().fidelityWarning(null,
+                    Bridge.getLog().fidelityWarning(BridgeConstants.TAG_XFERMODE,
                             xfermodeDelegate.getSupportMessage(),
                             null);
                 }
diff --git a/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/impl/RenderSessionImpl.java b/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/impl/RenderSessionImpl.java
index 5d5f2a1..a690777 100644
--- a/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/impl/RenderSessionImpl.java
+++ b/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/impl/RenderSessionImpl.java
@@ -364,9 +364,6 @@ public class RenderSessionImpl {
                 t = t.getCause();
             }
 
-            // log it
-            mParams.getLog().error(null, "Scene inflate failed", t);
-
             return ERROR_INFLATION.createResult(t.getMessage(), t);
         }
     }
@@ -480,9 +477,6 @@ public class RenderSessionImpl {
                 t = t.getCause();
             }
 
-            // log it
-            mParams.getLog().error(null, "Scene Render failed", t);
-
             return ERROR_UNKNOWN.createResult(t.getMessage(), t);
         }
     }
@@ -1051,7 +1045,7 @@ public class RenderSessionImpl {
         }
 
         assert false;
-        mParams.getLog().error(null,
+        mParams.getLog().error(BridgeConstants.TAG_RESOURCES_RESOLVE,
                 String.format("Unable to resolve parent style name: %s", parentName));
 
         return null;
diff --git a/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/impl/ResourceHelper.java b/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/impl/ResourceHelper.java
index fb52c86..b9aa80c 100644
--- a/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/impl/ResourceHelper.java
+++ b/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/impl/ResourceHelper.java
@@ -20,6 +20,7 @@ import com.android.ide.common.rendering.api.DensityBasedResourceValue;
 import com.android.ide.common.rendering.api.ResourceDensity;
 import com.android.ide.common.rendering.api.ResourceValue;
 import com.android.layoutlib.bridge.Bridge;
+import com.android.layoutlib.bridge.BridgeConstants;
 import com.android.layoutlib.bridge.android.BridgeContext;
 import com.android.layoutlib.bridge.android.BridgeXmlBlockParser;
 import com.android.ninepatch.NinePatch;
@@ -64,14 +65,18 @@ public final class ResourceHelper {
     public static int getColor(String value) {
         if (value != null) {
             if (value.startsWith("#") == false) {
-                throw new NumberFormatException();
+                throw new NumberFormatException(
+                        String.format("Color value '%s' must start with #", value));
             }
 
             value = value.substring(1);
 
             // make sure it's not longer than 32bit
             if (value.length() > 8) {
-                throw new NumberFormatException();
+                throw new NumberFormatException(String.format(
+                        "Color value '%s' is too long. Format is either" +
+                        "#AARRGGBB, #RRGGBB, #RGB, or #ARGB",
+                        value));
             }
 
             if (value.length() == 3) { // RGB format
@@ -160,7 +165,8 @@ public final class ResourceHelper {
                         // URL is wrong, we'll return null below
                     } catch (IOException e) {
                         // failed to read the file, we'll return null below.
-                        Bridge.getLog().error(null, "Failed lot load " + file.getAbsolutePath(), e);
+                        Bridge.getLog().error(BridgeConstants.TAG_RESOURCES_READ,
+                                "Failed lot load " + file.getAbsolutePath(), e);
                     }
                 }
 
@@ -194,7 +200,7 @@ public final class ResourceHelper {
                     Bridge.getLog().error(null, "Failed to parse file " + value, e);
                 }
             } else {
-                Bridge.getLog().error(null,
+                Bridge.getLog().error(BridgeConstants.TAG_BROKEN,
                         String.format("File %s does not exist (or is not a file)", stringValue));
             }
 
@@ -221,7 +227,8 @@ public final class ResourceHelper {
                     return new BitmapDrawable(context.getResources(), bitmap);
                 } catch (IOException e) {
                     // we'll return null below
-                    Bridge.getLog().error(null, "Failed lot load " + bmpFile.getAbsolutePath(), e);
+                    Bridge.getLog().error(BridgeConstants.TAG_RESOURCES_READ,
+                            "Failed lot load " + bmpFile.getAbsolutePath(), e);
                 }
             } else {
                 // attempt to get a color from the value
@@ -230,8 +237,8 @@ public final class ResourceHelper {
                     return new ColorDrawable(color);
                 } catch (NumberFormatException e) {
                     // we'll return null below.
-                    Bridge.getLog().error(null,
-                            "failed to convert " + stringValue + " into a drawable");
+                    Bridge.getLog().error(BridgeConstants.TAG_RESOURCES_FORMAT,
+                            "Failed to convert " + stringValue + " into a drawable", e);
                 }
             }
         }