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.filterfw.core; 19 20 import java.lang.reflect.Field; 21 22 /** 23 * @hide 24 */ 25 public class ProgramPort extends FieldPort { 26 27 protected String mVarName; 28 29 public ProgramPort(Filter filter, 30 String name, 31 String varName, 32 Field field, 33 boolean hasDefault) { 34 super(filter, name, field, hasDefault); 35 mVarName = varName; 36 } 37 38 @Override 39 public String toString() { 40 return "Program " + super.toString(); 41 } 42 43 @Override 44 public synchronized void transfer(FilterContext context) { 45 if (mValueWaiting) { 46 try { 47 Object fieldValue = mField.get(mFilter); 48 if (fieldValue != null) { 49 Program program = (Program)fieldValue; 50 program.setHostValue(mVarName, mValue); 51 mValueWaiting = false; 52 } 53 } catch (IllegalAccessException e) { 54 throw new RuntimeException( 55 "Access to program field '" + mField.getName() + "' was denied!"); 56 } catch (ClassCastException e) { 57 throw new RuntimeException("Non Program field '" + mField.getName() 58 + "' annotated with ProgramParameter!"); 59 } 60 } 61 } 62 } 63
