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package org.mule.processor.builder; |
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import org.mule.api.MuleContext; |
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import org.mule.api.MuleEvent; |
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import org.mule.api.MuleException; |
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import org.mule.api.construct.FlowConstruct; |
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import org.mule.api.construct.FlowConstructAware; |
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import org.mule.api.context.MuleContextAware; |
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import org.mule.api.lifecycle.Disposable; |
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import org.mule.api.lifecycle.Initialisable; |
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import org.mule.api.lifecycle.InitialisationException; |
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import org.mule.api.lifecycle.Lifecycle; |
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import org.mule.api.lifecycle.Startable; |
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import org.mule.api.lifecycle.Stoppable; |
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import org.mule.api.processor.MessageProcessor; |
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import org.mule.api.processor.MessageProcessorBuilder; |
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import org.mule.processor.NullMessageProcessor; |
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import org.mule.util.StringUtils; |
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import java.util.ArrayList; |
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import java.util.Collection; |
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import java.util.Iterator; |
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import java.util.List; |
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import org.apache.commons.logging.Log; |
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import org.apache.commons.logging.LogFactory; |
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52 | 0 | public class IteratingListMessageProcessorBuilder implements MessageProcessorBuilder |
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{ |
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|
55 | 0 | protected List processors = new ArrayList(); |
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protected String name; |
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public MessageProcessor build() throws MuleException |
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{ |
60 | 0 | if (processors.isEmpty()) |
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{ |
62 | 0 | return new NullMessageProcessor(); |
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} |
64 | 0 | return new IteratingListCompositeMessageProcessor(processors, name); |
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} |
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public void setName(String name) |
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{ |
69 | 0 | this.name = name; |
70 | 0 | } |
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public IteratingListMessageProcessorBuilder add(MessageProcessor... processors) |
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{ |
74 | 0 | for (MessageProcessor messageProcessor : processors) |
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{ |
76 | 0 | this.processors.add(messageProcessor); |
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} |
78 | 0 | return this; |
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} |
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public IteratingListMessageProcessorBuilder add(MessageProcessorBuilder... builders) |
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{ |
83 | 0 | for (MessageProcessorBuilder builder : builders) |
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{ |
85 | 0 | this.processors.add(builder); |
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} |
87 | 0 | return this; |
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} |
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public IteratingListMessageProcessorBuilder InterceptingChainMessageProcessorBuilder(Collection<MessageProcessor> processors) |
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{ |
92 | 0 | if (processors != null) |
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{ |
94 | 0 | this.processors.addAll(processors); |
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} |
96 | 0 | return this; |
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} |
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public IteratingListMessageProcessorBuilder addBefore(MessageProcessor processor) |
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{ |
101 | 0 | this.processors.add(0, processor); |
102 | 0 | return this; |
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} |
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public IteratingListMessageProcessorBuilder addBefore(MessageProcessorBuilder builder) |
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{ |
107 | 0 | this.processors.add(0, builder); |
108 | 0 | return this; |
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} |
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@Override |
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public String toString() |
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{ |
114 | 0 | if (name != null) |
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{ |
116 | 0 | return "IteratingListMessageProcessorBuilder '" + name + "'"; |
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} |
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else |
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{ |
120 | 0 | return super.toString(); |
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} |
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} |
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130 | 0 | static class IteratingListCompositeMessageProcessor |
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implements MessageProcessor, Lifecycle, FlowConstructAware, MuleContextAware |
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{ |
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private Log log; |
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private String name; |
135 | 0 | private List<MessageProcessor> list = new ArrayList<MessageProcessor>(); |
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|
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public IteratingListCompositeMessageProcessor(List processors, String name) throws MuleException |
138 | 0 | { |
139 | 0 | this.name = name; |
140 | 0 | for (Object object : list) |
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{ |
142 | 0 | list.add(getMessageProcessor(object)); |
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} |
144 | 0 | log = LogFactory.getLog(IteratingListCompositeMessageProcessor.class); |
145 | 0 | } |
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private MessageProcessor getMessageProcessor(Object processor) throws MuleException |
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{ |
149 | 0 | if (processor instanceof MessageProcessor) |
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{ |
151 | 0 | return (MessageProcessor) processor; |
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} |
153 | 0 | else if (processor instanceof MessageProcessorBuilder) |
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{ |
155 | 0 | return ((MessageProcessorBuilder) processor).build(); |
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} |
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else |
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{ |
159 | 0 | throw new IllegalArgumentException( |
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"MessageProcessorBuilder should only have MessageProcessor's or MessageProcessorBuilder's configured"); |
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} |
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} |
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public MuleEvent process(MuleEvent event) throws MuleException |
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{ |
166 | 0 | if (log.isDebugEnabled()) |
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{ |
168 | 0 | log.debug("Invoking " + this + " with event " + event); |
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} |
170 | 0 | MuleEvent result = event; |
171 | 0 | for (MessageProcessor processor : list) |
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{ |
173 | 0 | result = processor.process(result); |
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} |
175 | 0 | return result; |
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} |
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public void initialise() throws InitialisationException |
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{ |
180 | 0 | for (MessageProcessor processor : list) |
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{ |
182 | 0 | if (processor instanceof Initialisable) |
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{ |
184 | 0 | ((Initialisable) processor).initialise(); |
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} |
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} |
187 | 0 | } |
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public void start() throws MuleException |
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{ |
191 | 0 | for (MessageProcessor processor : list) |
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{ |
193 | 0 | if (processor instanceof Startable) |
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{ |
195 | 0 | ((Startable) processor).start(); |
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} |
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} |
198 | 0 | } |
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public void stop() throws MuleException |
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{ |
202 | 0 | for (MessageProcessor processor : list) |
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{ |
204 | 0 | if (processor instanceof Stoppable) |
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{ |
206 | 0 | ((Stoppable) processor).stop(); |
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} |
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} |
209 | 0 | } |
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public void dispose() |
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{ |
213 | 0 | for (MessageProcessor processor : list) |
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{ |
215 | 0 | if (processor instanceof Disposable) |
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{ |
217 | 0 | ((Disposable) processor).dispose(); |
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} |
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} |
220 | 0 | } |
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public void setFlowConstruct(FlowConstruct flowConstruct) |
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{ |
224 | 0 | for (MessageProcessor processor : list) |
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{ |
226 | 0 | if (processor instanceof FlowConstructAware) |
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{ |
228 | 0 | ((FlowConstructAware) processor).setFlowConstruct(flowConstruct); |
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} |
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} |
231 | 0 | } |
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public void setMuleContext(MuleContext muleContext) |
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{ |
235 | 0 | for (MessageProcessor processor : list) |
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{ |
237 | 0 | if (processor instanceof MuleContextAware) |
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{ |
239 | 0 | ((MuleContextAware) processor).setMuleContext(muleContext); |
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} |
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} |
242 | 0 | } |
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@Override |
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public String toString() |
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{ |
247 | 0 | StringBuffer string = new StringBuffer(); |
248 | 0 | string.append("IteratingListCompositeMessageProcessor "); |
249 | 0 | if (name != null) |
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{ |
251 | 0 | string.append(" '" + name + "' "); |
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} |
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|
254 | 0 | Iterator<MessageProcessor> mpIterator = list.iterator(); |
255 | 0 | if (mpIterator.hasNext()) |
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{ |
257 | 0 | string.append("\n[ "); |
258 | 0 | while (mpIterator.hasNext()) |
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{ |
260 | 0 | MessageProcessor mp = mpIterator.next(); |
261 | 0 | string.append("\n " + StringUtils.replace(mp.toString(), "\n", "\n ")); |
262 | 0 | if (mpIterator.hasNext()) |
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{ |
264 | 0 | string.append(", "); |
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} |
266 | 0 | } |
267 | 0 | string.append("\n]"); |
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} |
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|
270 | 0 | return string.toString(); |
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} |
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} |
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} |