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 18 package android.filterpacks.base; 19 20 import android.filterfw.core.Filter; 21 import android.filterfw.core.FilterContext; 22 import android.filterfw.core.Frame; 23 import android.filterfw.core.GenerateFieldPort; 24 25 import java.io.OutputStream; 26 import java.io.IOException; 27 import java.nio.ByteBuffer; 28 29 /** 30 * @hide 31 */ 32 public class OutputStreamTarget extends Filter { 33 34 @GenerateFieldPort(name = "stream") 35 private OutputStream mOutputStream; 36 37 public OutputStreamTarget(String name) { 38 super(name); 39 } 40 41 @Override 42 public void setupPorts() { 43 addInputPort("data"); 44 } 45 46 @Override 47 public void process(FilterContext context) { 48 Frame input = pullInput("data"); 49 ByteBuffer data; 50 51 if (input.getFormat().getObjectClass() == String.class) { 52 String stringVal = (String)input.getObjectValue(); 53 data = ByteBuffer.wrap(stringVal.getBytes()); 54 } else { 55 data = input.getData(); 56 } 57 try { 58 mOutputStream.write(data.array(), 0, data.limit()); 59 mOutputStream.flush(); 60 } catch (IOException exception) { 61 throw new RuntimeException( 62 "OutputStreamTarget: Could not write to stream: " + exception.getMessage() + "!"); 63 } 64 } 65 } 66
