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package org.mule.tck.functional; |
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import org.mule.api.MuleEventContext; |
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import org.mule.api.lifecycle.Callable; |
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import org.mule.transformer.types.DataTypeFactory; |
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import org.mule.util.ClassUtils; |
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import org.mule.util.StringMessageUtils; |
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import java.io.IOException; |
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import java.io.InputStream; |
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import edu.emory.mathcs.backport.java.util.concurrent.atomic.AtomicInteger; |
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import org.apache.commons.logging.Log; |
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import org.apache.commons.logging.LogFactory; |
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public class FunctionalStreamingTestComponent implements Callable |
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{ |
37 | 0 | protected transient Log logger = LogFactory.getLog(getClass()); |
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39 | 0 | private static AtomicInteger count = new AtomicInteger(0); |
40 | 0 | private int number = count.incrementAndGet(); |
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public static final int STREAM_SAMPLE_SIZE = 4; |
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public static final int STREAM_BUFFER_SIZE = 4096; |
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private EventCallback eventCallback; |
45 | 0 | private String summary = null; |
46 | 0 | private long targetSize = -1; |
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public FunctionalStreamingTestComponent() |
49 | 0 | { |
50 | 0 | logger.debug("creating " + toString()); |
51 | 0 | } |
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public void setEventCallback(EventCallback eventCallback, long targetSize) |
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{ |
55 | 0 | logger.debug("setting callback: " + eventCallback + " in " + toString()); |
56 | 0 | this.eventCallback = eventCallback; |
57 | 0 | this.targetSize = targetSize; |
58 | 0 | } |
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public String getSummary() |
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{ |
62 | 0 | return summary; |
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} |
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public int getNumber() |
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{ |
67 | 0 | return number; |
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} |
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public Object onCall(MuleEventContext context) throws Exception |
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{ |
72 | 0 | InputStream in = context.getMessage().getPayload(DataTypeFactory.create(InputStream.class)); |
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try |
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{ |
75 | 0 | logger.debug("arrived at " + toString()); |
76 | 0 | byte[] startData = new byte[STREAM_SAMPLE_SIZE]; |
77 | 0 | long startDataSize = 0; |
78 | 0 | byte[] endData = new byte[STREAM_SAMPLE_SIZE]; |
79 | 0 | long endDataSize = 0; |
80 | 0 | long endRingPointer = 0; |
81 | 0 | long streamLength = 0; |
82 | 0 | byte[] buffer = new byte[STREAM_BUFFER_SIZE]; |
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|
85 | 0 | long bytesRead = 0; |
86 | 0 | while (bytesRead >= 0) |
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{ |
88 | 0 | bytesRead = read(in, buffer); |
89 | 0 | if (bytesRead > 0) |
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{ |
91 | 0 | if (logger.isDebugEnabled()) |
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{ |
93 | 0 | logger.debug("read " + bytesRead + " bytes"); |
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} |
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|
96 | 0 | streamLength += bytesRead; |
97 | 0 | long startOfEndBytes = 0; |
98 | 0 | for (long i = 0; startDataSize < STREAM_SAMPLE_SIZE && i < bytesRead; ++i) |
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{ |
100 | 0 | startData[(int) startDataSize++] = buffer[(int) i]; |
101 | 0 | ++startOfEndBytes; |
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} |
103 | 0 | startOfEndBytes = Math.max(startOfEndBytes, bytesRead - STREAM_SAMPLE_SIZE); |
104 | 0 | for (long i = startOfEndBytes; i < bytesRead; ++i) |
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{ |
106 | 0 | ++endDataSize; |
107 | 0 | endData[(int) (endRingPointer++ % STREAM_SAMPLE_SIZE)] = buffer[(int) i]; |
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} |
109 | 0 | if (streamLength >= targetSize) |
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{ |
111 | 0 | doCallback(startData, startDataSize, |
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endData, endDataSize, endRingPointer, |
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streamLength, context); |
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} |
115 | 0 | } |
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} |
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|
118 | 0 | in.close(); |
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} |
120 | 0 | catch (Exception e) |
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{ |
122 | 0 | in.close(); |
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|
124 | 0 | e.printStackTrace(); |
125 | 0 | if (logger.isDebugEnabled()) |
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{ |
127 | 0 | logger.debug(e); |
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} |
129 | 0 | throw e; |
130 | 0 | } |
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132 | 0 | return null; |
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} |
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protected int read(InputStream in, byte[] buffer) throws IOException |
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{ |
137 | 0 | return in.read(buffer); |
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} |
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private void doCallback(byte[] startData, long startDataSize, |
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byte[] endData, long endDataSize, long endRingPointer, |
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long streamLength, MuleEventContext context) throws Exception |
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{ |
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145 | 0 | StringBuffer result = new StringBuffer("Received stream"); |
146 | 0 | result.append("; length: "); |
147 | 0 | result.append(streamLength); |
148 | 0 | result.append("; '"); |
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|
150 | 0 | for (long i = 0; i < startDataSize; ++i) |
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{ |
152 | 0 | result.append((char) startData[(int) i]); |
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} |
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|
155 | 0 | long endSize = Math.min(endDataSize, STREAM_SAMPLE_SIZE); |
156 | 0 | if (endSize > 0) |
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{ |
158 | 0 | result.append("..."); |
159 | 0 | for (long i = 0; i < endSize; ++i) |
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{ |
161 | 0 | result.append((char) endData[(int) ((endRingPointer + i) % STREAM_SAMPLE_SIZE)]); |
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} |
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} |
164 | 0 | result.append("'"); |
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|
166 | 0 | summary = result.toString(); |
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|
168 | 0 | String msg = StringMessageUtils.getBoilerPlate("Message Received in service: " |
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+ context.getFlowConstruct().getName() + ". " + summary |
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+ "\n callback: " + eventCallback, |
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'*', 80); |
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173 | 0 | logger.info(msg); |
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|
175 | 0 | if (eventCallback != null) |
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{ |
177 | 0 | eventCallback.eventReceived(context, this); |
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} |
179 | 0 | } |
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@Override |
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public String toString() |
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{ |
184 | 0 | return ClassUtils.getSimpleName(getClass()) + "/" + number; |
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} |
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} |