1 files changed, 64 insertions, 0 deletions
diff --git a/layoutlib_utils/src/com/android/ide/common/log/ILogger.java b/layoutlib_utils/src/com/android/ide/common/log/ILogger.java
new file mode 100644
index 0000000..1ad602e
--- /dev/null
+++ b/layoutlib_utils/src/com/android/ide/common/log/ILogger.java
@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.ide.common.log;
+
+import java.util.Formatter;
+
+public interface ILogger {
+
+    /**
+     * Prints a warning message on stdout.
+     * <p/>
+     * The message will be tagged with "Warning" on the output so the caller does not
+     * need to put such a prefix in the format string.
+     * <p/>
+     * Implementations should only display warnings in verbose mode.
+     *
+     * @param warningFormat is an optional error format. If non-null, it will be printed
+     *          using a {@link Formatter} with the provided arguments.
+     * @param args provides the arguments for warningFormat.
+     */
+    void warning(String warningFormat, Object... args);
+
+    /**
+     * Prints an error message on stderr.
+     * <p/>
+     * The message will be tagged with "Error" on the output so the caller does not
+     * need to put such a prefix in the format string.
+     * <p/>
+     * Implementation should always display errors, independent of verbose mode.
+     *
+     * @param t is an optional {@link Throwable} or {@link Exception}. If non-null, it's
+     *          message will be printed out.
+     * @param errorFormat is an optional error format. If non-null, it will be printed
+     *          using a {@link Formatter} with the provided arguments.
+     * @param args provides the arguments for errorFormat.
+     */
+    void error(Throwable t, String errorFormat, Object... args);
+
+    /**
+     * Prints a message as-is on stdout.
+     * <p/>
+     * Implementation should always display errors, independent of verbose mode.
+     * No prefix is used, the message is printed as-is after formatting.
+     *
+     * @param msgFormat is an optional error format. If non-null, it will be printed
+     *          using a {@link Formatter} with the provided arguments.
+     * @param args provides the arguments for msgFormat.
+     */
+    void printf(String msgFormat, Object... args);
+}