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55 changes: 55 additions & 0 deletions
55
...r-core/src/main/java/com/nearinfinity/blur/lucene/index/TimeBasedIndexDeletionPolicy.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,55 @@ | ||
| package com.nearinfinity.blur.lucene.index; | ||
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| import java.io.IOException; | ||
| import java.util.List; | ||
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| import org.apache.commons.logging.Log; | ||
| import org.apache.commons.logging.LogFactory; | ||
| import org.apache.lucene.index.IndexCommit; | ||
| import org.apache.lucene.index.IndexDeletionPolicy; | ||
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| public class TimeBasedIndexDeletionPolicy implements IndexDeletionPolicy { | ||
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| private static final Log LOG = LogFactory.getLog(TimeBasedIndexDeletionPolicy.class); | ||
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| private long maxAge; | ||
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| public TimeBasedIndexDeletionPolicy(long maxAge) { | ||
| this.maxAge = maxAge; | ||
| } | ||
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| @Override | ||
| public void onInit(List<? extends IndexCommit> commits) throws IOException { | ||
| onCommit(commits); | ||
| } | ||
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| @Override | ||
| public void onCommit(List<? extends IndexCommit> commits) throws IOException { | ||
| IndexCommit current = commits.get(commits.size() - 1); | ||
| int length; | ||
| if (isTooOld(current.getTimestamp())) { | ||
| // the current index is old enough that following generation can be | ||
| // removed | ||
| length = commits.size() - 1; | ||
| } else { | ||
| // the current index is NOT old enough, so therefore the next generation | ||
| // (no matter the old can be removed) | ||
| length = commits.size() - 2; | ||
| } | ||
| for (int i = 0; i < length; i++) { | ||
| IndexCommit commit = commits.get(i); | ||
| if (isTooOld(commit.getTimestamp())) { | ||
| LOG.info("Removing old generation [" + commit.getGeneration() + "] for directory [" + commit.getDirectory() + "]"); | ||
| commit.delete(); | ||
| } | ||
| } | ||
| } | ||
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| private boolean isTooOld(long timestamp) { | ||
| if (timestamp + maxAge < System.currentTimeMillis()) { | ||
| return true; | ||
| } | ||
| return false; | ||
| } | ||
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| } |
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58 changes: 58 additions & 0 deletions
58
...re/src/test/java/com/nearinfinity/blur/lucene/index/TimeBasedIndexDeletionPolicyTest.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,58 @@ | ||
| package com.nearinfinity.blur.lucene.index; | ||
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| import static org.junit.Assert.assertEquals; | ||
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| import java.io.IOException; | ||
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| import org.apache.lucene.analysis.KeywordAnalyzer; | ||
| import org.apache.lucene.document.Document; | ||
| import org.apache.lucene.document.Field; | ||
| import org.apache.lucene.document.Field.Index; | ||
| import org.apache.lucene.document.Field.Store; | ||
| import org.apache.lucene.index.CorruptIndexException; | ||
| import org.apache.lucene.index.IndexDeletionPolicy; | ||
| import org.apache.lucene.index.IndexReader; | ||
| import org.apache.lucene.index.IndexWriterConfig; | ||
| import org.apache.lucene.store.LockObtainFailedException; | ||
| import org.apache.lucene.store.RAMDirectory; | ||
| import org.apache.lucene.util.Version; | ||
| import org.junit.Test; | ||
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| import com.nearinfinity.blur.index.IndexWriter; | ||
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| public class TimeBasedIndexDeletionPolicyTest { | ||
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| @Test | ||
| public void testTimeBasedIndexDeletionPolicy() throws IOException, InterruptedException { | ||
| TimeBasedIndexDeletionPolicy indexDeletionPolicy = new TimeBasedIndexDeletionPolicy(3000); | ||
| RAMDirectory directory = new RAMDirectory(); | ||
| addAndCommit(directory, indexDeletionPolicy); | ||
| addAndCommit(directory, indexDeletionPolicy); | ||
| addAndCommit(directory, indexDeletionPolicy); | ||
| Thread.sleep(1000); | ||
| assertEquals(3, IndexReader.listCommits(directory).size()); | ||
| Thread.sleep(4000); | ||
| addAndCommit(directory, indexDeletionPolicy); | ||
| assertEquals(2, IndexReader.listCommits(directory).size()); | ||
| Thread.sleep(4000); | ||
| openClose(directory, indexDeletionPolicy); | ||
| assertEquals(1, IndexReader.listCommits(directory).size()); | ||
| } | ||
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| private void openClose(RAMDirectory directory, TimeBasedIndexDeletionPolicy indexDeletionPolicy) throws CorruptIndexException, LockObtainFailedException, IOException { | ||
| IndexWriterConfig conf = new IndexWriterConfig(Version.LUCENE_35, new KeywordAnalyzer()); | ||
| conf.setIndexDeletionPolicy(indexDeletionPolicy); | ||
| new IndexWriter(directory, conf).close(); | ||
| } | ||
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| private void addAndCommit(RAMDirectory directory, IndexDeletionPolicy indexDeletionPolicy) throws CorruptIndexException, LockObtainFailedException, IOException { | ||
| IndexWriterConfig conf = new IndexWriterConfig(Version.LUCENE_35, new KeywordAnalyzer()); | ||
| conf.setIndexDeletionPolicy(indexDeletionPolicy); | ||
| IndexWriter writer = new IndexWriter(directory, conf); | ||
| Document doc = new Document(); | ||
| doc.add(new Field("id", "1", Store.YES, Index.ANALYZED_NO_NORMS)); | ||
| writer.addDocument(doc); | ||
| writer.close(); | ||
| } | ||
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| } |
67 changes: 67 additions & 0 deletions
67
src/blur-thrift/src/main/java/com/nearinfinity/blur/thrift/BlurClient.java
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,67 @@ | ||
| package com.nearinfinity.blur.thrift; | ||
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| import java.lang.reflect.InvocationHandler; | ||
| import java.lang.reflect.InvocationTargetException; | ||
| import java.lang.reflect.Method; | ||
| import java.lang.reflect.Proxy; | ||
| import java.util.Arrays; | ||
| import java.util.List; | ||
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| import org.apache.thrift.TException; | ||
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| import com.nearinfinity.blur.thrift.commands.BlurCommand; | ||
| import com.nearinfinity.blur.thrift.generated.Blur.Client; | ||
| import com.nearinfinity.blur.thrift.generated.Blur.Iface; | ||
| import com.nearinfinity.blur.thrift.generated.BlurException; | ||
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| public class BlurClient { | ||
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| static class BlurClientInvocationHandler implements InvocationHandler { | ||
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| private List<Connection> connections; | ||
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| public BlurClientInvocationHandler(List<Connection> connections) { | ||
| this.connections = connections; | ||
| } | ||
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| @Override | ||
| public Object invoke(Object proxy, final Method method, final Object[] args) throws Throwable { | ||
| return BlurClientManager.execute(connections, new BlurCommand<Object>() { | ||
| @Override | ||
| public Object call(Client client) throws BlurException, TException { | ||
| try { | ||
| return method.invoke(client, args); | ||
| } catch (IllegalArgumentException e) { | ||
| throw new RuntimeException(e); | ||
| } catch (IllegalAccessException e) { | ||
| throw new RuntimeException(e); | ||
| } catch (InvocationTargetException e) { | ||
| Throwable targetException = e.getTargetException(); | ||
| if (targetException instanceof BlurException) { | ||
| throw (BlurException) targetException; | ||
| } | ||
| if (targetException instanceof TException) { | ||
| throw (TException) targetException; | ||
| } | ||
| throw new RuntimeException(targetException); | ||
| } | ||
| } | ||
| }); | ||
| } | ||
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| } | ||
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| public static Iface getClient(String connectionStr) { | ||
| List<Connection> connections = BlurClientManager.getConnections(connectionStr); | ||
| return getClient(connections); | ||
| } | ||
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| public static Iface getClient(Connection connection) { | ||
| return getClient(Arrays.asList(connection)); | ||
| } | ||
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| public static Iface getClient(List<Connection> connections) { | ||
| return (Iface) Proxy.newProxyInstance(Iface.class.getClassLoader(), new Class[] { Iface.class }, new BlurClientInvocationHandler(connections)); | ||
| } | ||
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| } |
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