npeltier closed pull request #5: SLING-7707 Create Executor Pipe
URL: https://github.com/apache/sling-org-apache-sling-pipes/pull/5
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diff --git a/src/main/java/org/apache/sling/pipes/PipeBuilder.java
b/src/main/java/org/apache/sling/pipes/PipeBuilder.java
index 41fdc32..8ac48f8 100644
--- a/src/main/java/org/apache/sling/pipes/PipeBuilder.java
+++ b/src/main/java/org/apache/sling/pipes/PipeBuilder.java
@@ -345,4 +345,12 @@
* @throws PersistenceException in case something goes wrong in the job
creation
*/
Job runAsync(Map bindings) throws PersistenceException;
+
+ /**
+ * run referenced pipes in parallel
+ * @param numThreads number of threads to use for running the contained
pipes
+ * @param bindings additional bindings for the execution (can be null)
+ * @return set of resource path, merged output of pipes execution (order
is arbitrary)
+ */
+ ExecutionResult runParallel(int numThreads, Map bindings) throws Exception;
}
diff --git a/src/main/java/org/apache/sling/pipes/internal/ManifoldPipe.java
b/src/main/java/org/apache/sling/pipes/internal/ManifoldPipe.java
new file mode 100644
index 0000000..b11ae2b
--- /dev/null
+++ b/src/main/java/org/apache/sling/pipes/internal/ManifoldPipe.java
@@ -0,0 +1,195 @@
+/*
+ * 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 org.apache.sling.pipes.internal;
+
+import java.util.Iterator;
+import java.util.NoSuchElementException;
+import java.util.concurrent.ArrayBlockingQueue;
+import java.util.concurrent.Callable;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import java.util.concurrent.TimeUnit;
+
+import org.apache.sling.api.SlingHttpServletRequest;
+import org.apache.sling.api.SlingHttpServletResponse;
+import org.apache.sling.api.resource.NonExistingResource;
+import org.apache.sling.api.resource.Resource;
+import org.apache.sling.pipes.ExecutionResult;
+import org.apache.sling.pipes.OutputWriter;
+import org.apache.sling.pipes.Pipe;
+import org.apache.sling.pipes.PipeBindings;
+import org.apache.sling.pipes.Plumber;
+import org.apache.sling.pipes.SuperPipe;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * This pipe executes the pipes it has in its configuration, in sequence or
parallel;
+ * the output of the children pipes is merged;
+ * if execution is parallel, merge ordering is random;
+ * duplicate resources are kept in the output
+ * ManifoldPipe uses a thread pool to run its subpipes, but is NOT itself
thread-safe
+ */
+public class ManifoldPipe extends SuperPipe {
+ private static final Logger log =
LoggerFactory.getLogger(ManifoldPipe.class);
+
+ public static final String RESOURCE_TYPE = "slingPipes/manifold";
+ public static final String PN_QUEUE_SIZE = "queueSize";
+ public static final String PN_NUM_THREADS = "numThreads";
+ public static final String PN_EXECUTION_TIMEOUT = "executionTimeout";
+ public static final int QUEUE_SIZE_DEFAULT = 10000;
+ public static final int NUM_THREADS_DEFAULT = 5;
+ public static final int EXECUTION_TIMEOUT_DEFAULT = 24*60*60;
+ // marker to be inserted in the queue after all thread pipes are done
pushing output
+ private static final Resource END_OF_STREAM = new
NonExistingResource(null, "");
+
+ private int numThreads;
+ private int executionTimeout;
+ private ArrayBlockingQueue<Resource> outputQueue;
+
+ /**
+ * Constructor
+ * @param plumber plumber
+ * @param resource container's configuration resource
+ * @param upperBindings pipe bindings
+ * @throws Exception bad configuration handling
+ */
+ public ManifoldPipe(Plumber plumber, Resource resource, PipeBindings
upperBindings) throws Exception{
+ super(plumber, resource, upperBindings);
+ int queueSize = properties.get(PN_QUEUE_SIZE, QUEUE_SIZE_DEFAULT);
+ numThreads = properties.get(PN_NUM_THREADS, NUM_THREADS_DEFAULT);
+ executionTimeout = properties.get(PN_EXECUTION_TIMEOUT,
EXECUTION_TIMEOUT_DEFAULT);
+ outputQueue = new ArrayBlockingQueue<>(queueSize);
+ }
+
+ @Override
+ public void buildChildren() throws Exception {
+ for (Iterator<Resource> childPipeResources =
getConfiguration().listChildren(); childPipeResources.hasNext();){
+ Resource pipeResource = childPipeResources.next();
+ Pipe pipe = plumber.getPipe(pipeResource, bindings);
+ if (pipe == null) {
+ log.error("configured pipe {} is either not registered, or not
computable by the plumber", pipeResource.getPath());
+ } else {
+ pipe.setParent(this.getParent());
+ subpipes.add(pipe);
+ }
+ }
+ }
+
+ @Override
+ protected Iterator<Resource> computeSubpipesOutput() throws Exception {
+ return new ConcurrentIterator(numThreads);
+ }
+
+ private class PipeThread implements Runnable {
+
+ Pipe pipe;
+
+ PipeThread(Pipe pipe) {
+ this.pipe = pipe;
+ }
+
+ @Override
+ public void run() {
+ try {
+
plumber.execute(pipe.getResource().getResourceResolver().clone(null), pipe,
null, new ThreadOutputWriter(), true);
+ } catch (Exception e) {
+ log.error("Error while running pipe %s", pipe.getName(), e);
+ }
+ }
+ }
+
+ private class ThreadOutputWriter extends OutputWriter {
+ @Override
+ protected void writeItem(Resource resource) {
+ try {
+ outputQueue.put(resource);
+ } catch (InterruptedException e) {
+ log.error("Interrupted while running pipe %s", pipe.getName(),
e);
+ }
+ }
+
+ @Override
+ public boolean handleRequest(SlingHttpServletRequest request) {
+ return false;
+ }
+
+ @Override
+ protected void initResponse(SlingHttpServletResponse response) {}
+
+ @Override
+ public void starts() {}
+
+ @Override
+ public void ends() {}
+ }
+
+ private class ConcurrentIterator implements Iterator<Resource> {
+
+ private ExecutorService executorService;
+ private Callable<ExecutionResult> callables;
+ private Resource nextItem = null;
+
+ private class StreamTerminator implements Runnable {
+ @Override
+ public void run() {
+ try {
+ executorService.awaitTermination(executionTimeout,
TimeUnit.SECONDS);
+ outputQueue.put(END_OF_STREAM);
+ } catch (InterruptedException e) {
+ log.error("Interrupted while waiting for input
exhaustion", e);
+ }
+ }
+ }
+
+ ConcurrentIterator(int numThreads) {
+ executorService = Executors.newFixedThreadPool(numThreads);
+ for (Pipe pipe: subpipes) {
+ executorService.execute(new PipeThread(pipe));
+ }
+ executorService.shutdown();
+ new Thread(new StreamTerminator()).start();
+ }
+
+ @Override
+ public boolean hasNext() {
+ peekNext();
+ return nextItem != END_OF_STREAM;
+ }
+
+ @Override
+ public Resource next() {
+ peekNext();
+ if (nextItem == END_OF_STREAM) {
+ throw new NoSuchElementException();
+ }
+ Resource toReturn = nextItem;
+ nextItem = null;
+ return toReturn;
+ }
+
+ private void peekNext() {
+ if (nextItem == null) {
+ try {
+ nextItem = outputQueue.take();
+ } catch (InterruptedException e) {
+ log.error("Interrupted while retrieving output", e);
+ }
+ }
+ }
+ }
+}
diff --git a/src/main/java/org/apache/sling/pipes/internal/PipeBuilderImpl.java
b/src/main/java/org/apache/sling/pipes/internal/PipeBuilderImpl.java
index cc825e7..a8cd68d 100644
--- a/src/main/java/org/apache/sling/pipes/internal/PipeBuilderImpl.java
+++ b/src/main/java/org/apache/sling/pipes/internal/PipeBuilderImpl.java
@@ -50,6 +50,7 @@
import static
org.apache.sling.jcr.resource.JcrResourceConstants.NT_SLING_FOLDER;
import static
org.apache.sling.jcr.resource.JcrResourceConstants.NT_SLING_ORDERED_FOLDER;
import static
org.apache.sling.jcr.resource.JcrResourceConstants.SLING_RESOURCE_TYPE_PROPERTY;
+import static org.apache.sling.pipes.internal.ManifoldPipe.PN_NUM_THREADS;
import static org.apache.sling.pipes.internal.CommandUtil.checkArguments;
import static org.apache.sling.pipes.internal.CommandUtil.writeToMap;
@@ -376,6 +377,16 @@ public Job runAsync(Map bindings) throws
PersistenceException {
return plumber.executeAsync(resolver, pipe.getResource().getPath(),
bindings);
}
+ @Override
+ public ExecutionResult runParallel(int numThreads, Map additionalBindings)
throws Exception {
+ containerStep.setType(ManifoldPipe.RESOURCE_TYPE);
+ Map bindings = new HashMap() {{put(PN_NUM_THREADS, numThreads);}};
+ if (additionalBindings != null){
+ bindings.putAll(additionalBindings);
+ }
+ return run(bindings);
+ }
+
/**
* holds a subpipe set of informations
*/
@@ -385,6 +396,10 @@ public Job runAsync(Map bindings) throws
PersistenceException {
Map<String, Map> confs = new HashMap<>();
Step(String type){
properties = new HashMap();
+ setType(type);
+ }
+
+ void setType(String type){
properties.put(SLING_RESOURCE_TYPE_PROPERTY, type);
}
}
diff --git a/src/main/java/org/apache/sling/pipes/internal/PlumberImpl.java
b/src/main/java/org/apache/sling/pipes/internal/PlumberImpl.java
index 470527e..e0f4b17 100644
--- a/src/main/java/org/apache/sling/pipes/internal/PlumberImpl.java
+++ b/src/main/java/org/apache/sling/pipes/internal/PlumberImpl.java
@@ -137,6 +137,7 @@ public void activate(Configuration configuration){
*/
protected void registerPipes(){
registerPipe(ContainerPipe.RESOURCE_TYPE, ContainerPipe.class);
+ registerPipe(ManifoldPipe.RESOURCE_TYPE, ManifoldPipe.class);
for (Method method : PipeBuilder.class.getDeclaredMethods()){
PipeExecutor executor = method.getAnnotation(PipeExecutor.class);
if (executor != null){
diff --git a/src/test/java/org/apache/sling/pipes/ManifoldPipeTest.java
b/src/test/java/org/apache/sling/pipes/ManifoldPipeTest.java
new file mode 100644
index 0000000..047cc83
--- /dev/null
+++ b/src/test/java/org/apache/sling/pipes/ManifoldPipeTest.java
@@ -0,0 +1,84 @@
+/*
+ * 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 org.apache.sling.pipes;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+import static org.junit.Assume.assumeNotNull;
+
+import java.util.Iterator;
+
+import org.apache.sling.api.resource.PersistenceException;
+import org.apache.sling.api.resource.Resource;
+import org.apache.sling.testing.mock.sling.ResourceResolverType;
+import org.apache.sling.testing.mock.sling.junit.SlingContext;
+import org.junit.Before;
+import org.junit.Rule;
+import org.junit.Test;
+
+/**
+ * testing executor with dummy child pipes
+ */
+public class ManifoldPipeTest extends AbstractPipeTest {
+
+ public static final String NN_DEFAULT = "defaultExecutor";
+ public static final String NN_STRAINED = "strainedExecutor";
+
+
+
+ @Before
+ public void setup() throws PersistenceException {
+ super.setup();
+ context = new SlingContext(ResourceResolverType.JCR_OAK);
+ context.load().json("/SLING-INF/jcr_root/content/fruits.json",
PATH_FRUITS);
+ context.load().json("/threaded.json", PATH_PIPE);
+ }
+
+ @Test
+ public void testWithDefaults() throws Exception {
+ Iterator<Resource> output = getOutput(PATH_PIPE + "/" + NN_DEFAULT);
+ boolean hasNext = output.hasNext();
+ assertTrue("There should be children", hasNext);
+ }
+
+ @Test
+ public void testStrained() throws Exception {
+ Iterator<Resource> tenPipes = getOutput(PATH_PIPE + "/" + NN_STRAINED);
+ int numResults = 0;
+ while (tenPipes.hasNext()) {
+ assumeNotNull("The output should not have null", tenPipes.next());
+ numResults++;
+ }
+ assertEquals("All the sub-pipes output should be present exactly once
in Executor output", 10*6, numResults);
+ }
+
+ @Test
+ public void testStrainedFromReference() throws Exception {
+ ExecutionResult result =
plumber.newPipe(context.resourceResolver()).ref(PATH_PIPE + "/" +
NN_STRAINED).run();
+ assertEquals("All the sub-pipes output should be present exactly once
in Executor output", 10*6, result.size());
+ }
+
+ @Test
+ public void testBuilder() throws Exception {
+ ExecutionResult result = plumber.newPipe(context.resourceResolver())
+ .echo(PATH_APPLE)
+ .echo(PATH_BANANA)
+ .runParallel(2, null);
+ assertEquals("There should be 2 outputs", 2, result.size());
+ assertTrue("Should contain both fruits",
result.toString().contains(PATH_APPLE) &&
result.toString().contains(PATH_BANANA));
+ }
+}
\ No newline at end of file
diff --git a/src/test/resources/threaded.json b/src/test/resources/threaded.json
new file mode 100644
index 0000000..bb59f20
--- /dev/null
+++ b/src/test/resources/threaded.json
@@ -0,0 +1,165 @@
+{
+ "jcr:primaryType":"nt:unstructured",
+ "strainedExecutor": {
+ "jcr:primaryType":"nt:unstructured",
+ "sling:resourceType":"slingPipes/manifold",
+ "jcr:description":"10 sub-pipes to join output from; fewer threads than
pipes, small queues",
+ "numThreads":2,
+ "queueSize":2,
+ "conf":{
+ "jcr:primaryType":"sling:OrderedFolder",
+ "pipe0":{
+ "sling:resourceType":"slingPipes/dummySearch",
+ "conf":{
+ "jcr:primaryType":"nt:unstructured",
+ "apple0":{"jcr:primaryType":"nt:unstructured","color":"green",
"name":"apple"},
+ "apricot0":{"jcr:primaryType":"nt:unstructured","color":"green",
"name":"apricot"},
+ "peach0":{"jcr:primaryType":"nt:unstructured","color":"green",
"name":"peach"},
+ "grape0":{"jcr:primaryType":"nt:unstructured","color":"green",
"name":"grape"},
+ "mango0":{"jcr:primaryType":"nt:unstructured","color":"green",
"name":"mango"},
+ "banana0":{"jcr:primaryType":"nt:unstructured", "color":"yellow",
"name":"banana"}
+ }
+ },
+ "pipe1":{
+ "sling:resourceType":"slingPipes/dummySearch",
+ "conf":{
+ "jcr:primaryType":"nt:unstructured",
+ "apple1":{"jcr:primaryType":"nt:unstructured","color":"green",
"name":"apple"},
+ "apricot1":{"jcr:primaryType":"nt:unstructured","color":"green",
"name":"apricot"},
+ "peach1":{"jcr:primaryType":"nt:unstructured","color":"green",
"name":"peach"},
+ "grape1":{"jcr:primaryType":"nt:unstructured","color":"green",
"name":"grape"},
+ "mango1":{"jcr:primaryType":"nt:unstructured","color":"green",
"name":"mango"},
+ "banana1":{"jcr:primaryType":"nt:unstructured", "color":"yellow",
"name":"banana"}
+ }
+ },
+ "pipe2":{
+ "sling:resourceType":"slingPipes/dummySearch",
+ "conf":{
+ "jcr:primaryType":"nt:unstructured",
+ "apple2":{"jcr:primaryType":"nt:unstructured","color":"green",
"name":"apple"},
+ "apricot2":{"jcr:primaryType":"nt:unstructured","color":"green",
"name":"apricot"},
+ "peach2":{"jcr:primaryType":"nt:unstructured","color":"green",
"name":"peach"},
+ "grape2":{"jcr:primaryType":"nt:unstructured","color":"green",
"name":"grape"},
+ "mango2":{"jcr:primaryType":"nt:unstructured","color":"green",
"name":"mango"},
+ "banana2":{"jcr:primaryType":"nt:unstructured", "color":"yellow",
"name":"banana"}
+ }
+ },
+ "pipe3":{
+ "sling:resourceType":"slingPipes/dummySearch",
+ "conf":{
+ "jcr:primaryType":"nt:unstructured",
+ "apple3":{"jcr:primaryType":"nt:unstructured","color":"green",
"name":"apple"},
+ "apricot3":{"jcr:primaryType":"nt:unstructured","color":"green",
"name":"apricot"},
+ "peach3":{"jcr:primaryType":"nt:unstructured","color":"green",
"name":"peach"},
+ "grape3":{"jcr:primaryType":"nt:unstructured","color":"green",
"name":"grape"},
+ "mango3":{"jcr:primaryType":"nt:unstructured","color":"green",
"name":"mango"},
+ "banana3":{"jcr:primaryType":"nt:unstructured", "color":"yellow",
"name":"banana"}
+ }
+ },
+ "pipe4":{
+ "sling:resourceType":"slingPipes/dummySearch",
+ "conf":{
+ "jcr:primaryType":"nt:unstructured",
+ "apple4":{"jcr:primaryType":"nt:unstructured","color":"green",
"name":"apple"},
+ "apricot4":{"jcr:primaryType":"nt:unstructured","color":"green",
"name":"apricot"},
+ "peach4":{"jcr:primaryType":"nt:unstructured","color":"green",
"name":"peach"},
+ "grape4":{"jcr:primaryType":"nt:unstructured","color":"green",
"name":"grape"},
+ "mango4":{"jcr:primaryType":"nt:unstructured","color":"green",
"name":"mango"},
+ "banana4":{"jcr:primaryType":"nt:unstructured", "color":"yellow",
"name":"banana"}
+ }
+ },
+ "pipe5":{
+ "sling:resourceType":"slingPipes/dummySearch",
+ "conf":{
+ "jcr:primaryType":"nt:unstructured",
+ "apple5":{"jcr:primaryType":"nt:unstructured","color":"green",
"name":"apple"},
+ "apricot5":{"jcr:primaryType":"nt:unstructured","color":"green",
"name":"apricot"},
+ "peach5":{"jcr:primaryType":"nt:unstructured","color":"green",
"name":"peach"},
+ "grape5":{"jcr:primaryType":"nt:unstructured","color":"green",
"name":"grape"},
+ "mango5":{"jcr:primaryType":"nt:unstructured","color":"green",
"name":"mango"},
+ "banana5":{"jcr:primaryType":"nt:unstructured", "color":"yellow",
"name":"banana"}
+ }
+ },
+ "pipe6":{
+ "sling:resourceType":"slingPipes/dummySearch",
+ "conf":{
+ "jcr:primaryType":"nt:unstructured",
+ "apple6":{"jcr:primaryType":"nt:unstructured","color":"green",
"name":"apple"},
+ "apricot6":{"jcr:primaryType":"nt:unstructured","color":"green",
"name":"apricot"},
+ "peach6":{"jcr:primaryType":"nt:unstructured","color":"green",
"name":"peach"},
+ "grape6":{"jcr:primaryType":"nt:unstructured","color":"green",
"name":"grape"},
+ "mango6":{"jcr:primaryType":"nt:unstructured","color":"green",
"name":"mango"},
+ "banana6":{"jcr:primaryType":"nt:unstructured", "color":"yellow",
"name":"banana"}
+ }
+ },
+ "pipe7":{
+ "sling:resourceType":"slingPipes/dummySearch",
+ "conf":{
+ "jcr:primaryType":"nt:unstructured",
+ "apple7":{"jcr:primaryType":"nt:unstructured","color":"green",
"name":"apple"},
+ "apricot7":{"jcr:primaryType":"nt:unstructured","color":"green",
"name":"apricot"},
+ "peach7":{"jcr:primaryType":"nt:unstructured","color":"green",
"name":"peach"},
+ "grape7":{"jcr:primaryType":"nt:unstructured","color":"green",
"name":"grape"},
+ "mango7":{"jcr:primaryType":"nt:unstructured","color":"green",
"name":"mango"},
+ "banana7":{"jcr:primaryType":"nt:unstructured", "color":"yellow",
"name":"banana"}
+ }
+ },
+ "pipe8":{
+ "sling:resourceType":"slingPipes/dummySearch",
+ "conf":{
+ "jcr:primaryType":"nt:unstructured",
+ "apple8":{"jcr:primaryType":"nt:unstructured","color":"green",
"name":"apple"},
+ "apricot8":{"jcr:primaryType":"nt:unstructured","color":"green",
"name":"apricot"},
+ "peach8":{"jcr:primaryType":"nt:unstructured","color":"green",
"name":"peach"},
+ "grape8":{"jcr:primaryType":"nt:unstructured","color":"green",
"name":"grape"},
+ "mango8":{"jcr:primaryType":"nt:unstructured","color":"green",
"name":"mango"},
+ "banana8":{"jcr:primaryType":"nt:unstructured", "color":"yellow",
"name":"banana"}
+ }
+ },
+ "pipe9":{
+ "sling:resourceType":"slingPipes/dummySearch",
+ "conf":{
+ "jcr:primaryType":"nt:unstructured",
+ "apple9":{"jcr:primaryType":"nt:unstructured","color":"green",
"name":"apple"},
+ "apricot9":{"jcr:primaryType":"nt:unstructured","color":"green",
"name":"apricot"},
+ "peach9":{"jcr:primaryType":"nt:unstructured","color":"green",
"name":"peach"},
+ "grape9":{"jcr:primaryType":"nt:unstructured","color":"green",
"name":"grape"},
+ "mango9":{"jcr:primaryType":"nt:unstructured","color":"green",
"name":"mango"},
+ "banana9":{"jcr:primaryType":"nt:unstructured", "color":"yellow",
"name":"banana"}
+ }
+ }
+ }
+ },
+ "defaultExecutor": {
+ "jcr:primaryType": "nt:unstructured",
+ "jcr:description": "more threads than pipes, sufficient queue capacity",
+ "sling:resourceType": "slingPipes/manifold",
+ "conf": {
+ "jcr:primaryType": "sling:OrderedFolder",
+ "pipe0":{
+ "sling:resourceType":"slingPipes/dummySearch",
+ "conf":{
+ "jcr:primaryType":"nt:unstructured",
+ "apple0":{"jcr:primaryType":"nt:unstructured","color":"green",
"name":"apple"},
+ "apricot0":{"jcr:primaryType":"nt:unstructured","color":"green",
"name":"apricot"},
+ "peach0":{"jcr:primaryType":"nt:unstructured","color":"green",
"name":"peach"},
+ "grape0":{"jcr:primaryType":"nt:unstructured","color":"green",
"name":"grape"},
+ "mango0":{"jcr:primaryType":"nt:unstructured","color":"green",
"name":"mango"},
+ "banana0":{"jcr:primaryType":"nt:unstructured", "color":"yellow",
"name":"banana"}
+ }
+ },
+ "pipe1":{
+ "sling:resourceType":"slingPipes/dummySearch",
+ "conf":{
+ "jcr:primaryType":"nt:unstructured",
+ "apple1":{"jcr:primaryType":"nt:unstructured","color":"green",
"name":"apple"},
+ "apricot1":{"jcr:primaryType":"nt:unstructured","color":"green",
"name":"apricot"},
+ "peach1":{"jcr:primaryType":"nt:unstructured","color":"green",
"name":"peach"},
+ "grape1":{"jcr:primaryType":"nt:unstructured","color":"green",
"name":"grape"},
+ "mango1":{"jcr:primaryType":"nt:unstructured","color":"green",
"name":"mango"},
+ "banana1":{"jcr:primaryType":"nt:unstructured", "color":"yellow",
"name":"banana"}
+ }
+ }
+ }
+ }
+}
\ No newline at end of file
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