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30 day Evaluation Version distributed via the Maven Jar Repository. Clover is not free. You have 30 days to evaluate it. Please visit http://www.thecortex.net/clover to obtain a licensed version of Clover | |||||||||||||||||||
Source file | Conditionals | Statements | Methods | TOTAL | |||||||||||||||
LinkFactoryImpl.java | 100% | 95.8% | 100% | 97.4% |
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// Copyright 2004, 2005 The Apache Software Foundation
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package org.apache.tapestry.services.impl;
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import java.io.IOException;
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import java.util.Iterator;
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import java.util.List;
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import java.util.Map;
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import org.apache.commons.codec.net.URLCodec;
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import org.apache.hivemind.ApplicationRuntimeException;
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import org.apache.hivemind.ErrorLog;
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import org.apache.hivemind.order.Orderer;
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import org.apache.hivemind.util.Defense;
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import org.apache.tapestry.IEngine;
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import org.apache.tapestry.IRequestCycle;
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import org.apache.tapestry.Tapestry;
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import org.apache.tapestry.engine.EngineServiceLink;
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import org.apache.tapestry.engine.ILink;
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import org.apache.tapestry.engine.ServiceEncoder;
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import org.apache.tapestry.engine.ServiceEncoding;
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import org.apache.tapestry.engine.ServiceEncodingImpl;
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import org.apache.tapestry.record.PropertyPersistenceStrategySource;
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import org.apache.tapestry.services.DataSqueezer;
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import org.apache.tapestry.services.LinkFactory;
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import org.apache.tapestry.services.ServiceConstants;
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import org.apache.tapestry.web.WebRequest;
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/**
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* @author Howard M. Lewis Ship
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* @since 4.0
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*/
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public class LinkFactoryImpl implements LinkFactory |
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{ |
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private DataSqueezer _dataSqueezer;
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private ErrorLog _errorLog;
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/**
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* List of {@link org.apache.tapestry.services.impl.ServiceEncoderContribution}.
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*/
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private List _contributions;
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private ServiceEncoder[] _encoders;
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private String _contextPath;
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private String _servletPath;
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private final Object[] EMPTY = new Object[0]; |
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private URLCodec _codec = new URLCodec(); |
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private WebRequest _request;
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private PropertyPersistenceStrategySource _persistenceStrategySource;
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public void initializeService() |
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{ |
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Orderer orderer = new Orderer(_errorLog, "encoder"); |
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Iterator i = _contributions.iterator(); |
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while (i.hasNext())
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{ |
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ServiceEncoderContribution c = (ServiceEncoderContribution) i.next(); |
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orderer.add(c, c.getId(), c.getAfter(), c.getBefore()); |
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} |
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List ordered = orderer.getOrderedObjects(); |
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int count = ordered.size();
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_encoders = new ServiceEncoder[count];
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for (int j = 0; j < count; j++) |
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{ |
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ServiceEncoderContribution c = (ServiceEncoderContribution) ordered.get(j); |
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_encoders[j] = c.getEncoder(); |
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} |
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} |
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public ILink constructLink(IRequestCycle cycle, Map parameters, boolean stateful) |
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{ |
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Defense.notNull(cycle, "cycle");
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Defense.notNull(parameters, "parameters");
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squeezeServiceParameters(parameters); |
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IEngine engine = cycle.getEngine(); |
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ServiceEncoding serviceEncoding = createServiceEncoding(parameters); |
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// Give persistent property strategies a chance to store extra data
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// into the link.
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if (stateful)
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_persistenceStrategySource.addParametersForPersistentProperties(serviceEncoding, cycle); |
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String fullServletPath = _contextPath + serviceEncoding.getServletPath(); |
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return new EngineServiceLink(cycle, fullServletPath, engine.getOutputEncoding(), _codec, |
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_request, parameters, stateful); |
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} |
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public ServiceEncoder[] getServiceEncoders()
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{ |
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return _encoders;
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} |
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/**
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* Creates a new service encoding, and allows the encoders to modify it before returning.
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*/
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private ServiceEncoding createServiceEncoding(Map parameters)
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{ |
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ServiceEncodingImpl result = new ServiceEncodingImpl(_servletPath, parameters);
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for (int i = 0; i < _encoders.length; i++) |
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{ |
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_encoders[i].encode(result); |
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if (result.isModified())
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break;
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} |
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return result;
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} |
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protected void squeezeServiceParameters(Map parameters) |
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{ |
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Object[] serviceParameters = (Object[]) parameters.get(ServiceConstants.PARAMETER); |
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if (serviceParameters == null) |
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return;
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String[] squeezed = squeeze(serviceParameters); |
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parameters.put(ServiceConstants.PARAMETER, squeezed); |
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} |
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public Object[] extractListenerParameters(IRequestCycle cycle)
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{ |
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String[] squeezed = cycle.getParameters(ServiceConstants.PARAMETER); |
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if (Tapestry.size(squeezed) == 0)
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return EMPTY;
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try
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{ |
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return _dataSqueezer.unsqueeze(squeezed);
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} |
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catch (IOException ex)
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{ |
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throw new ApplicationRuntimeException(ex); |
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} |
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} |
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private String[] squeeze(Object[] input)
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{ |
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try
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{ |
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return _dataSqueezer.squeeze(input);
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} |
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catch (IOException ex)
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{ |
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throw new ApplicationRuntimeException(ex); |
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} |
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} |
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public void setDataSqueezer(DataSqueezer dataSqueezer) |
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{ |
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_dataSqueezer = dataSqueezer; |
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} |
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public void setContributions(List contributions) |
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{ |
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_contributions = contributions; |
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} |
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public void setErrorLog(ErrorLog errorLog) |
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{ |
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_errorLog = errorLog; |
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} |
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public void setServletPath(String servletPath) |
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{ |
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_servletPath = servletPath; |
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} |
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public void setContextPath(String contextPath) |
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{ |
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_contextPath = contextPath; |
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} |
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public void setRequest(WebRequest request) |
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{ |
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_request = request; |
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} |
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/**
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* This is kind of limiting; it's possible that other things beyond persistence strategies will
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* want to have a hand at encoding data into URLs. If that comes to pass, we'll need to
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* implement an event coordinator/listener combo to let implementations know about links being
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* generated.
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*/
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public void setPersistenceStrategySource( |
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PropertyPersistenceStrategySource persistenceStrategySource) |
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{ |
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_persistenceStrategySource = persistenceStrategySource; |
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} |
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} |
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