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authorlresende <lresende@13f79535-47bb-0310-9956-ffa450edef68>2008-08-14 08:59:55 +0000
committerlresende <lresende@13f79535-47bb-0310-9956-ffa450edef68>2008-08-14 08:59:55 +0000
commit088621442ee8471528e1723ebfaeb09079e9e551 (patch)
tree22ea4ea71bca891016277b0725dcfbd040a3c554
parent9a557efd21b0cef47fefcc5f2d2b2f782a1af12d (diff)
TUSCANY-2540 - Applying ctrezzo patch
git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@685822 13f79535-47bb-0310-9956-ffa450edef68
-rw-r--r--sandbox/ctrezzo/Map-Reduce-Java/LICENSE205
-rw-r--r--sandbox/ctrezzo/Map-Reduce-Java/NOTICE6
-rw-r--r--sandbox/ctrezzo/Map-Reduce-Java/src/main/java/services/IntermediateCollector.java30
-rw-r--r--sandbox/ctrezzo/Map-Reduce-Java/src/main/java/services/IntermediateCollectorImpl.java71
-rw-r--r--sandbox/ctrezzo/Map-Reduce-Java/src/main/java/services/JobConf.java28
-rw-r--r--sandbox/ctrezzo/Map-Reduce-Java/src/main/java/services/JobConfImpl.java110
-rw-r--r--sandbox/ctrezzo/Map-Reduce-Java/src/main/java/services/JobSubmit.java67
-rw-r--r--sandbox/ctrezzo/Map-Reduce-Java/src/main/java/services/KeyValuePair.java42
-rw-r--r--sandbox/ctrezzo/Map-Reduce-Java/src/main/java/services/Mapper.java28
-rw-r--r--sandbox/ctrezzo/Map-Reduce-Java/src/main/java/services/MapperImpl.java38
-rw-r--r--sandbox/ctrezzo/Map-Reduce-Java/src/main/java/services/OutputCollector.java31
-rw-r--r--sandbox/ctrezzo/Map-Reduce-Java/src/main/java/services/OutputCollectorImpl.java47
-rw-r--r--sandbox/ctrezzo/Map-Reduce-Java/src/main/java/services/Reducer.java29
-rw-r--r--sandbox/ctrezzo/Map-Reduce-Java/src/main/java/services/ReducerImpl.java39
-rw-r--r--sandbox/ctrezzo/Map-Reduce-Java/src/main/resources/mapred.composite59
15 files changed, 830 insertions, 0 deletions
diff --git a/sandbox/ctrezzo/Map-Reduce-Java/LICENSE b/sandbox/ctrezzo/Map-Reduce-Java/LICENSE
new file mode 100644
index 0000000000..8aa906c321
--- /dev/null
+++ b/sandbox/ctrezzo/Map-Reduce-Java/LICENSE
@@ -0,0 +1,205 @@
+
+ Apache License
+ Version 2.0, January 2004
+ http://www.apache.org/licenses/
+
+ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+ 1. Definitions.
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+ "License" shall mean the terms and conditions for use, reproduction,
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+ "Derivative Works" shall mean any work, whether in Source or Object
+ form, that is based on (or derived from) the Work and for which the
+ editorial revisions, annotations, elaborations, or other modifications
+ represent, as a whole, an original work of authorship. For the purposes
+ of this License, Derivative Works shall not include works that remain
+ separable from, or merely link (or bind by name) to the interfaces of,
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+ "Contribution" shall mean any work of authorship, including
+ the original version of the Work and any modifications or additions
+ to that Work or Derivative Works thereof, that is intentionally
+ submitted to Licensor for inclusion in the Work by the copyright owner
+ or by an individual or Legal Entity authorized to submit on behalf of
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+ to the Licensor or its representatives, including but not limited to
+ communication on electronic mailing lists, source code control systems,
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+ "Contributor" shall mean Licensor and any individual or Legal Entity
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+ 2. Grant of Copyright License. Subject to the terms and conditions of
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+ 4. Redistribution. You may reproduce and distribute copies of the
+ Work or Derivative Works thereof in any medium, with or without
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+ meet the following conditions:
+
+ (a) You must give any other recipients of the Work or
+ Derivative Works a copy of this License; and
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+ (b) You must cause any modified files to carry prominent notices
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+ (c) You must retain, in the Source form of any Derivative Works
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+ You may add Your own copyright statement to Your modifications and
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+ reproduction, and distribution of the Work otherwise complies with
+ the conditions stated in this License.
+
+ 5. Submission of Contributions. Unless You explicitly state otherwise,
+ any Contribution intentionally submitted for inclusion in the Work
+ by You to the Licensor shall be under the terms and conditions of
+ this License, without any additional terms or conditions.
+ Notwithstanding the above, nothing herein shall supersede or modify
+ the terms of any separate license agreement you may have executed
+ with Licensor regarding such Contributions.
+
+ 6. Trademarks. This License does not grant permission to use the trade
+ names, trademarks, service marks, or product names of the Licensor,
+ except as required for reasonable and customary use in describing the
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+ 7. Disclaimer of Warranty. Unless required by applicable law or
+ agreed to in writing, Licensor provides the Work (and each
+ Contributor provides its Contributions) on an "AS IS" BASIS,
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+ whether in tort (including negligence), contract, or otherwise,
+ unless required by applicable law (such as deliberate and grossly
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+ Unless required by applicable law or agreed to in writing, software
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diff --git a/sandbox/ctrezzo/Map-Reduce-Java/NOTICE b/sandbox/ctrezzo/Map-Reduce-Java/NOTICE
new file mode 100644
index 0000000000..fdfa0e9faa
--- /dev/null
+++ b/sandbox/ctrezzo/Map-Reduce-Java/NOTICE
@@ -0,0 +1,6 @@
+${pom.name}
+Copyright (c) 2005 - 2008 The Apache Software Foundation
+
+This product includes software developed by
+The Apache Software Foundation (http://www.apache.org/).
+
diff --git a/sandbox/ctrezzo/Map-Reduce-Java/src/main/java/services/IntermediateCollector.java b/sandbox/ctrezzo/Map-Reduce-Java/src/main/java/services/IntermediateCollector.java
new file mode 100644
index 0000000000..df5a405ea0
--- /dev/null
+++ b/sandbox/ctrezzo/Map-Reduce-Java/src/main/java/services/IntermediateCollector.java
@@ -0,0 +1,30 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package services;
+
+import org.osoa.sca.annotations.Remotable;
+
+@Remotable
+public interface IntermediateCollector {
+
+ public void collect(String key, int value);
+
+ public void reducePhase();
+}
diff --git a/sandbox/ctrezzo/Map-Reduce-Java/src/main/java/services/IntermediateCollectorImpl.java b/sandbox/ctrezzo/Map-Reduce-Java/src/main/java/services/IntermediateCollectorImpl.java
new file mode 100644
index 0000000000..5fd5661ea2
--- /dev/null
+++ b/sandbox/ctrezzo/Map-Reduce-Java/src/main/java/services/IntermediateCollectorImpl.java
@@ -0,0 +1,71 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package services;
+
+import java.util.Iterator;
+import java.util.Vector;
+
+import org.osoa.sca.annotations.Reference;
+
+public class IntermediateCollectorImpl implements IntermediateCollector {
+
+private Vector<KeyValuePair> table = new Vector<KeyValuePair>();
+
+ @Reference
+ public Reducer myReducer;
+
+
+ public void collect(String key, int value) {
+ table.add(new KeyValuePair(key, value));
+ }
+
+ public void reducePhase() {
+ java.util.Collections.sort(table);
+
+ Iterator<KeyValuePair> it = table.iterator();
+
+ //no data
+ if(!it.hasNext()) {
+ return;
+ }
+
+ Vector<Integer> values = new Vector<Integer>();
+ KeyValuePair last = it.next();
+ values.add(last.value);
+ while(it.hasNext()) {
+ KeyValuePair curr = it.next();
+ if(last.compareTo(curr) == 0) {
+ values.add(curr.value);
+ last = curr;
+ }
+ else {
+ myReducer.reduce(last.key, values.iterator());
+ values.clear();
+ values.add(curr.value);
+ last = curr;
+
+ }
+ }
+
+ myReducer.reduce(last.key, values.iterator());
+
+ }
+
+}
diff --git a/sandbox/ctrezzo/Map-Reduce-Java/src/main/java/services/JobConf.java b/sandbox/ctrezzo/Map-Reduce-Java/src/main/java/services/JobConf.java
new file mode 100644
index 0000000000..6d9eda5449
--- /dev/null
+++ b/sandbox/ctrezzo/Map-Reduce-Java/src/main/java/services/JobConf.java
@@ -0,0 +1,28 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package services;
+
+import org.osoa.sca.annotations.Remotable;
+
+@Remotable
+public interface JobConf {
+
+ public void run();
+}
diff --git a/sandbox/ctrezzo/Map-Reduce-Java/src/main/java/services/JobConfImpl.java b/sandbox/ctrezzo/Map-Reduce-Java/src/main/java/services/JobConfImpl.java
new file mode 100644
index 0000000000..98f0b6d946
--- /dev/null
+++ b/sandbox/ctrezzo/Map-Reduce-Java/src/main/java/services/JobConfImpl.java
@@ -0,0 +1,110 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package services;
+
+import java.io.BufferedReader;
+import java.io.DataInputStream;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.io.PrintWriter;
+import java.util.Iterator;
+import org.osoa.sca.annotations.Property;
+import org.osoa.sca.annotations.Reference;
+
+public class JobConfImpl implements JobConf {
+
+ @Property
+ public String input;
+ @Property
+ public String output;
+ @Reference
+ public Mapper myMapper;
+ @Reference
+ public IntermediateCollector iCollector;
+ @Reference
+ public OutputCollector oCollector;
+
+ public void run() {
+
+ FileInputStream fstream = null;
+ try {
+ fstream = new FileInputStream(input);
+ }
+ catch(FileNotFoundException e) {
+ System.out.println("ERROR: Input file does not exist.");
+ return;
+ }
+
+ DataInputStream in = new DataInputStream(fstream);
+ BufferedReader br = new BufferedReader(new InputStreamReader(in));
+
+ //Read File Line By Line
+ String strLine = null;
+ int count = 1;
+ try {
+ strLine = br.readLine();
+ }
+ catch(IOException e) {
+ System.out.println("ERROR: Input file can not be read.");
+ return;
+ }
+ while (strLine != null) {
+ myMapper.map(count, strLine);
+ count++;
+
+ try {
+ strLine = br.readLine();
+ }
+ catch(IOException e) {
+ System.out.println("ERROR: Input file can not be read.");
+ return;
+ }
+ }
+
+ iCollector.reducePhase();
+
+ Iterator<KeyValuePair> it = oCollector.getCollection();
+
+ //Write to output file
+
+ FileOutputStream oStream = null;
+ try {
+ oStream = new FileOutputStream(output);
+ }
+ catch(FileNotFoundException e) {
+ System.out.println("ERROR: Output file can not be written to.");
+ return;
+ }
+
+ PrintWriter pw = new PrintWriter(oStream);
+
+ while(it.hasNext()) {
+ KeyValuePair kv = it.next();
+ pw.println(kv.key + " " + kv.value);
+ }
+
+ pw.close();
+ }
+
+}
diff --git a/sandbox/ctrezzo/Map-Reduce-Java/src/main/java/services/JobSubmit.java b/sandbox/ctrezzo/Map-Reduce-Java/src/main/java/services/JobSubmit.java
new file mode 100644
index 0000000000..1922d2a14b
--- /dev/null
+++ b/sandbox/ctrezzo/Map-Reduce-Java/src/main/java/services/JobSubmit.java
@@ -0,0 +1,67 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package services;
+
+import java.io.File;
+
+import org.apache.tuscany.sca.host.embedded.SCADomain;
+
+
+public class JobSubmit {
+
+ /**
+ * @param args
+ */
+ public static void main(String[] args) {
+
+ System.out.println("Starting ...");
+ SCADomain scaDomain = SCADomain.newInstance("mapred.composite");
+ JobConf myJob = scaDomain.getService(JobConf.class, "JobConf");
+ System.out.println("Executing Map-Reduce Job.");
+ myJob.run();
+ System.out.println("Map-Reduce Job Complete.");
+ System.out.println("Closing Domain ...");
+ scaDomain.close();
+ System.out.println();
+
+
+ //Test code to check java classes without SCA
+ /*
+ JobConfImpl jConf = new JobConfImpl();
+ MapperImpl myMap = new MapperImpl();
+ IntermediateCollectorImpl iColl = new IntermediateCollectorImpl();
+ ReducerImpl myRed = new ReducerImpl();
+ OutputCollectorImpl oColl = new OutputCollectorImpl();
+
+ jConf.input = "/test/input/file01.txt";
+ jConf.output = "/test/output/out.txt";
+ jConf.myMapper = myMap;
+ jConf.oCollector = oColl;
+ jConf.iCollector = iColl;
+ myMap.iCollector = iColl;
+ iColl.myReducer = myRed;
+ myRed.oCollector = oColl;
+
+ jConf.run();
+ */
+
+ }
+
+}
diff --git a/sandbox/ctrezzo/Map-Reduce-Java/src/main/java/services/KeyValuePair.java b/sandbox/ctrezzo/Map-Reduce-Java/src/main/java/services/KeyValuePair.java
new file mode 100644
index 0000000000..94d3e60d8a
--- /dev/null
+++ b/sandbox/ctrezzo/Map-Reduce-Java/src/main/java/services/KeyValuePair.java
@@ -0,0 +1,42 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package services;
+
+public class KeyValuePair implements Comparable<KeyValuePair> {
+
+ public String key;
+ public int value;
+
+ public KeyValuePair() {
+ key = "";
+ value = 0;
+ }
+
+ public KeyValuePair(String k, int v) {
+ key = k;
+ value = v;
+ }
+
+ public int compareTo(KeyValuePair o) {
+
+ return key.compareTo(o.key);
+ }
+
+}
diff --git a/sandbox/ctrezzo/Map-Reduce-Java/src/main/java/services/Mapper.java b/sandbox/ctrezzo/Map-Reduce-Java/src/main/java/services/Mapper.java
new file mode 100644
index 0000000000..0f5f321eb9
--- /dev/null
+++ b/sandbox/ctrezzo/Map-Reduce-Java/src/main/java/services/Mapper.java
@@ -0,0 +1,28 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package services;
+
+import org.osoa.sca.annotations.Remotable;
+
+@Remotable
+public interface Mapper {
+
+ public void map(int key, String value);
+}
diff --git a/sandbox/ctrezzo/Map-Reduce-Java/src/main/java/services/MapperImpl.java b/sandbox/ctrezzo/Map-Reduce-Java/src/main/java/services/MapperImpl.java
new file mode 100644
index 0000000000..be7e91ebd3
--- /dev/null
+++ b/sandbox/ctrezzo/Map-Reduce-Java/src/main/java/services/MapperImpl.java
@@ -0,0 +1,38 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package services;
+
+import java.util.StringTokenizer;
+import org.osoa.sca.annotations.Reference;
+
+public class MapperImpl implements Mapper {
+
+ @Reference
+ public IntermediateCollector iCollector2;
+
+ public void map(int key, String value) {
+
+ StringTokenizer itr = new StringTokenizer(value);
+ while (itr.hasMoreTokens()) {
+ iCollector2.collect(itr.nextToken(), 1);
+ }
+ }
+
+}
diff --git a/sandbox/ctrezzo/Map-Reduce-Java/src/main/java/services/OutputCollector.java b/sandbox/ctrezzo/Map-Reduce-Java/src/main/java/services/OutputCollector.java
new file mode 100644
index 0000000000..d3b7930ed3
--- /dev/null
+++ b/sandbox/ctrezzo/Map-Reduce-Java/src/main/java/services/OutputCollector.java
@@ -0,0 +1,31 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package services;
+
+import java.util.Iterator;
+import org.osoa.sca.annotations.Remotable;
+
+@Remotable
+public interface OutputCollector {
+
+ public void collect(String key, int value);
+
+ public Iterator<KeyValuePair> getCollection();
+}
diff --git a/sandbox/ctrezzo/Map-Reduce-Java/src/main/java/services/OutputCollectorImpl.java b/sandbox/ctrezzo/Map-Reduce-Java/src/main/java/services/OutputCollectorImpl.java
new file mode 100644
index 0000000000..02fdbf58e4
--- /dev/null
+++ b/sandbox/ctrezzo/Map-Reduce-Java/src/main/java/services/OutputCollectorImpl.java
@@ -0,0 +1,47 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package services;
+
+import java.util.Vector;
+import java.util.Iterator;
+
+public class OutputCollectorImpl implements OutputCollector {
+
+ private Vector<KeyValuePair> table = new Vector<KeyValuePair>();
+ private boolean sorted = false;
+
+
+ public void collect(String key, int value) {
+
+ table.add(new KeyValuePair(key, value));
+ sorted = false;
+ }
+
+ public Iterator<KeyValuePair> getCollection() {
+
+ if(!sorted) {
+ java.util.Collections.sort(table);
+ sorted = true;
+ }
+
+ return table.iterator();
+ }
+
+}
diff --git a/sandbox/ctrezzo/Map-Reduce-Java/src/main/java/services/Reducer.java b/sandbox/ctrezzo/Map-Reduce-Java/src/main/java/services/Reducer.java
new file mode 100644
index 0000000000..375a6f146c
--- /dev/null
+++ b/sandbox/ctrezzo/Map-Reduce-Java/src/main/java/services/Reducer.java
@@ -0,0 +1,29 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package services;
+
+import java.util.Iterator;
+import org.osoa.sca.annotations.Remotable;
+
+@Remotable
+public interface Reducer {
+
+ public void reduce(String key, Iterator<Integer> values);
+}
diff --git a/sandbox/ctrezzo/Map-Reduce-Java/src/main/java/services/ReducerImpl.java b/sandbox/ctrezzo/Map-Reduce-Java/src/main/java/services/ReducerImpl.java
new file mode 100644
index 0000000000..9f733573a7
--- /dev/null
+++ b/sandbox/ctrezzo/Map-Reduce-Java/src/main/java/services/ReducerImpl.java
@@ -0,0 +1,39 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package services;
+
+import java.util.Iterator;
+import org.osoa.sca.annotations.Reference;
+
+public class ReducerImpl implements Reducer {
+
+ @Reference
+ public OutputCollector oCollector2;
+
+ public void reduce(String key, Iterator<Integer> values) {
+ int sum = 0;
+ while (values.hasNext()) {
+ sum += values.next().intValue();
+ }
+
+ oCollector2.collect(key, sum);
+ }
+
+}
diff --git a/sandbox/ctrezzo/Map-Reduce-Java/src/main/resources/mapred.composite b/sandbox/ctrezzo/Map-Reduce-Java/src/main/resources/mapred.composite
new file mode 100644
index 0000000000..e465ae4fb0
--- /dev/null
+++ b/sandbox/ctrezzo/Map-Reduce-Java/src/main/resources/mapred.composite
@@ -0,0 +1,59 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<!--
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+-->
+
+
+<composite xmlns="http://www.osoa.org/xmlns/sca/1.0"
+ xmlns:t="http://tuscany.apache.org/xmlns/sca/1.0"
+ targetNamespace="http://mapred"
+ name="mapred">
+
+ <component name="JobConf">
+ <implementation.java class="services.JobConfImpl"/>
+
+ <property name="input">/test/input/file01.txt</property>
+ <property name="output">/test/output/out.txt</property>
+
+ <reference name="myMapper" target="MapperComponent"/>
+ <reference name="iCollector" target="IntermediateCollectorComponent"/>
+ <reference name="oCollector" target="OutputCollectorComponent"/>
+ </component>
+
+ <component name="MapperComponent">
+ <implementation.java class="services.MapperImpl"/>
+ <reference name="iCollector2" target="IntermediateCollectorComponent"/>
+ </component>
+
+ <component name="IntermediateCollectorComponent">
+ <implementation.java class="services.IntermediateCollectorImpl"/>
+ <reference name="myReducer" target="ReducerComponent"/>
+ </component>
+
+ <component name="ReducerComponent">
+ <implementation.java class="services.ReducerImpl"/>
+ <reference name="oCollector2" target="OutputCollectorComponent"/>
+ </component>
+
+ <component name="OutputCollectorComponent">
+ <implementation.java class="services.OutputCollectorImpl"/>
+ </component>
+
+
+</composite> \ No newline at end of file