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.core; 1965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 2065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn/** 2165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * @hide 2265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn */ 2365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennpublic class OutputPort extends FilterPort { 2465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 2565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn protected InputPort mTargetPort; 2665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn protected InputPort mBasePort; 2765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 2865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public OutputPort(Filter filter, String name) { 2965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn super(filter, name); 3065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 3165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 3265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public void connectTo(InputPort target) { 3365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn if (mTargetPort != null) { 3465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn throw new RuntimeException(this + " already connected to " + mTargetPort + "!"); 3565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 3665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mTargetPort = target; 3765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mTargetPort.setSourcePort(this); 3865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 3965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 4065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public boolean isConnected() { 4165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn return mTargetPort != null; 4265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 4365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 4465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public void open() { 4565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn super.open(); 4665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn if (mTargetPort != null && !mTargetPort.isOpen()) { 4765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mTargetPort.open(); 4865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 4965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 5065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 5165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public void close() { 5265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn super.close(); 5365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn if (mTargetPort != null && mTargetPort.isOpen()) { 5465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mTargetPort.close(); 5565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 5665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 5765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 5865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public InputPort getTargetPort() { 5965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn return mTargetPort; 6065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 6165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 6265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public Filter getTargetFilter() { 6365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn return mTargetPort == null ? null : mTargetPort.getFilter(); 6465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 6565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 6665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public void setBasePort(InputPort basePort) { 6765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mBasePort = basePort; 6865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 6965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 7065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public InputPort getBasePort() { 7165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn return mBasePort; 7265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 7365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 7465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public boolean filterMustClose() { 7565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn return !isOpen() && isBlocking(); 7665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 7765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 7865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public boolean isReady() { 7965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn return (isOpen() && mTargetPort.acceptsFrame()) || !isBlocking(); 8065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 8165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 8265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn @Override 8365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public void clear() { 8465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn if (mTargetPort != null) { 8565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mTargetPort.clear(); 8665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 8765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 8865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 8965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn @Override 9065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public void pushFrame(Frame frame) { 9165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn if (mTargetPort == null) { 9265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn throw new RuntimeException( 9365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn "Attempting to push frame on unconnected port: " + this + "!"); 9465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 9565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mTargetPort.pushFrame(frame); 9665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 9765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 9865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn @Override 9965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public void setFrame(Frame frame) { 10065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn assertPortIsOpen(); 10165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn if (mTargetPort == null) { 10265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn throw new RuntimeException( 10365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn "Attempting to set frame on unconnected port: " + this + "!"); 10465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 10565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mTargetPort.setFrame(frame); 10665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 10765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 10865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn @Override 10965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public Frame pullFrame() { 11065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn throw new RuntimeException("Cannot pull frame on " + this + "!"); 11165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 11265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 11365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn @Override 11465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public boolean hasFrame() { 11565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn return mTargetPort == null ? false : mTargetPort.hasFrame(); 11665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 11765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 11865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn @Override 11965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public String toString() { 12065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn return "output " + super.toString(); 12165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 12265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn} 123