1 files changed, 50 insertions, 0 deletions
diff --git a/core/java/android/os/PooledStringReader.java b/core/java/android/os/PooledStringReader.java
new file mode 100644
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+++ b/core/java/android/os/PooledStringReader.java
@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2015 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 android.os;
+
+/**
+ * Helper class for reading pooling strings from a Parcel.  It must be used
+ * in conjunction with {@link android.os.PooledStringWriter}.  This really needs
+ * to be pushed in to Parcel itself, but doing that is...  complicated.
+ * @hide
+ */
+public class PooledStringReader {
+    private final Parcel mIn;
+
+    /**
+     * The pool of strings we have collected so far.
+     */
+    private final String[] mPool;
+
+    public PooledStringReader(Parcel in) {
+        mIn = in;
+        final int size = in.readInt();
+        mPool = new String[size];
+    }
+
+    public String readString() {
+        int idx = mIn.readInt();
+        if (idx >= 0) {
+            return mPool[idx];
+        } else {
+            idx = (-idx) - 1;
+            String str = mIn.readString();
+            mPool[idx] = str;
+            return str;
+        }
+    }
+}