1/* 2 * Copyright (C) 2011 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 18package android.filterpacks.base; 19 20import android.filterfw.core.Filter; 21import android.filterfw.core.FilterContext; 22import android.filterfw.core.Frame; 23import android.filterfw.core.FrameFormat; 24import android.filterfw.core.GenerateFieldPort; 25 26import java.io.OutputStream; 27import java.io.IOException; 28import java.nio.ByteBuffer; 29 30/** 31 * @hide 32 */ 33public class OutputStreamTarget extends Filter { 34 35 @GenerateFieldPort(name = "stream") 36 private OutputStream mOutputStream; 37 38 public OutputStreamTarget(String name) { 39 super(name); 40 } 41 42 @Override 43 public void setupPorts() { 44 addInputPort("data"); 45 } 46 47 @Override 48 public void process(FilterContext context) { 49 Frame input = pullInput("data"); 50 ByteBuffer data; 51 52 if (input.getFormat().getObjectClass() == String.class) { 53 String stringVal = (String)input.getObjectValue(); 54 data = ByteBuffer.wrap(stringVal.getBytes()); 55 } else { 56 data = input.getData(); 57 } 58 try { 59 mOutputStream.write(data.array(), 0, data.limit()); 60 mOutputStream.flush(); 61 } catch (IOException exception) { 62 throw new RuntimeException( 63 "OutputStreamTarget: Could not write to stream: " + exception.getMessage() + "!"); 64 } 65 } 66} 67