api-impl: Add DumpHeapProvider.java

src/api-impl/android/content/ContentProvider.java

@@ -1,5 +1,6 @@
 package android.content;
 
+import java.io.FileNotFoundException;
 import java.util.HashMap;
 import java.util.Map;
 
@@ -37,6 +38,6 @@ public abstract class ContentProvider {
 
 	public abstract String getType(Uri uri);
 
-	public abstract ParcelFileDescriptor openFile(Uri uri, String mode);
+	public abstract ParcelFileDescriptor openFile(Uri uri, String mode) throws FileNotFoundException;
 
 }

src/api-impl/com/android/server/am/DumpHeapProvider.java

@@ -0,0 +1,80 @@
+
+/*
+ * 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 com.android.server.am;
+import android.content.ContentProvider;
+import android.content.ContentValues;
+import android.database.Cursor;
+import android.net.Uri;
+import android.os.Environment;
+import android.os.ParcelFileDescriptor;
+import java.io.File;
+import java.io.FileNotFoundException;
+public class DumpHeapProvider extends ContentProvider {
+	static final Object sLock = new Object();
+	static File sHeapDumpJavaFile;
+	static public File getJavaFile() {
+		synchronized (sLock) {
+			return sHeapDumpJavaFile;
+		}
+	}
+	@Override
+	public boolean onCreate() {
+		synchronized (sLock) {
+			File dataDir = Environment.getDataDirectory();
+			File systemDir = new File(dataDir, "system");
+			File heapdumpDir = new File(systemDir, "heapdump");
+			heapdumpDir.mkdir();
+			sHeapDumpJavaFile = new File(heapdumpDir, "javaheap.bin");
+		}
+		return true;
+	}
+	@Override
+	public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs, String sortOrder) {
+		return null;
+	}
+	@Override
+	public String getType(Uri uri) {
+		return "application/octet-stream";
+	}
+	@Override
+	public Uri insert(Uri uri, ContentValues values) {
+		return null;
+	}
+	@Override
+	public int delete(Uri uri, String selection, String[] selectionArgs) {
+		return 0;
+	}
+	
+/*     @Override
+	public int update(Uri uri, ContentValues values, String selection, String[] selectionArgs) {
+		return 0;
+	} 
+*/
+	@Override
+	public ParcelFileDescriptor openFile(Uri uri, String mode) throws FileNotFoundException {
+		synchronized (sLock) {
+			String path = uri.getEncodedPath();
+			final String tag = Uri.decode(path);
+			if (tag.equals("/java")) {
+				return ParcelFileDescriptor.open(sHeapDumpJavaFile,
+						ParcelFileDescriptor.MODE_READ_ONLY);
+			} else {
+				throw new FileNotFoundException("Invalid path for " + uri);
+			}
+		}
+	}
+}

src/api-impl/meson.build

@@ -557,6 +557,7 @@ hax_jar = jar('hax', [
               	'com/google/android/vending/licensing/LicenseChecker.java',
               	'com/google/android/vending/licensing/LicenseCheckerCallback.java',
               	'com/google/android/vending/licensing/Policy.java',
+		'com/android/server/am/DumpHeapProvider.java',
               	'com/htc/util/htcresutil/resutil.java',
               	'javax/microedition/khronos/egl/EGL.java',
               	'javax/microedition/khronos/egl/EGL10.java',