165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn/* 265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * Copyright (C) 2011 The Android Open Source Project 365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * 465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * Licensed under the Apache License, Version 2.0 (the "License"); 565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * you may not use this file except in compliance with the License. 665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * You may obtain a copy of the License at 765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * 865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * http://www.apache.org/licenses/LICENSE-2.0 965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * 1065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * Unless required by applicable law or agreed to in writing, software 1165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * distributed under the License is distributed on an "AS IS" BASIS, 1265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * See the License for the specific language governing permissions and 1465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * limitations under the License. 1565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn */ 1665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 1765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 1865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennpackage android.filterfw.io; 1965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 2065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennimport android.content.Context; 2165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennimport android.filterfw.core.FilterGraph; 2265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennimport android.filterfw.core.KeyValueMap; 2365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennimport android.filterfw.io.GraphIOException; 2465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 2565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennimport java.io.InputStream; 2665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennimport java.io.InputStreamReader; 2765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennimport java.io.IOException; 2865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennimport java.io.StringWriter; 2965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 3065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn/** 3165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * @hide 3265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn */ 3365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennpublic abstract class GraphReader { 3465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 3565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn protected KeyValueMap mReferences = new KeyValueMap(); 3665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 3765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public abstract FilterGraph readGraphString(String graphString) throws GraphIOException; 3865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 3965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public abstract KeyValueMap readKeyValueAssignments(String assignments) throws GraphIOException; 4065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 4165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public FilterGraph readGraphResource(Context context, int resourceId) throws GraphIOException { 4265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn InputStream inputStream = context.getResources().openRawResource(resourceId); 4365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn InputStreamReader reader = new InputStreamReader(inputStream); 4465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn StringWriter writer = new StringWriter(); 4565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn char[] buffer = new char[1024]; 4665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn try { 4765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn int bytesRead; 4865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn while ((bytesRead = reader.read(buffer, 0, 1024)) > 0) { 4965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn writer.write(buffer, 0, bytesRead); 5065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 5165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } catch (IOException e) { 5265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn throw new RuntimeException("Could not read specified resource file!"); 5365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 5465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn return readGraphString(writer.toString()); 5565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 5665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 5765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public void addReference(String name, Object object) { 5865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mReferences.put(name, object); 5965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 6065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 6165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public void addReferencesByMap(KeyValueMap refs) { 6265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mReferences.putAll(refs); 6365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 6465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 6565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public void addReferencesByKeysAndValues(Object... references) { 6665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mReferences.setKeyValues(references); 6765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 6865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 6965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn} 70