Example usage for java.lang Thread setContextClassLoader

Introduction

In this page you can find the example usage for java.lang Thread setContextClassLoader.

Prototype

public void setContextClassLoader(ClassLoader cl) 

Source Link

Document

Sets the context ClassLoader for this Thread.

Usage

From source file:org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost.java

public void postBatchMutateIndispensably(final MiniBatchOperationInProgress<Mutation> miniBatchOp,
        final boolean success) throws IOException {
    ObserverContext<RegionCoprocessorEnvironment> ctx = null;
    for (RegionEnvironment env : coprocessors) {
        if (env.getInstance() instanceof RegionObserver) {
            ctx = ObserverContext.createAndPrepare(env, ctx);
            Thread currentThread = Thread.currentThread();
            ClassLoader cl = currentThread.getContextClassLoader();
            try {
                currentThread.setContextClassLoader(env.getClassLoader());
                ((RegionObserver) env.getInstance()).postBatchMutateIndispensably(ctx, miniBatchOp, success);
            } catch (Throwable e) {
                handleCoprocessorThrowable(env, e);
            } finally {
                currentThread.setContextClassLoader(cl);
            }//w w  w .ja  v  a2s.c om
            if (ctx.shouldComplete()) {
                break;
            }
        }
    }
}

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From source file:org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost.java

/**
 * @param append Append object/*from w w  w.  j a v  a 2  s .  c o m*/
 * @param result the result returned by the append
 * @throws IOException if an error occurred on the coprocessor
 */
public void postAppend(final Append append, final Result result) throws IOException {
    ObserverContext<RegionCoprocessorEnvironment> ctx = null;
    for (RegionEnvironment env : coprocessors) {
        if (env.getInstance() instanceof RegionObserver) {
            ctx = ObserverContext.createAndPrepare(env, ctx);
            Thread currentThread = Thread.currentThread();
            ClassLoader cl = currentThread.getContextClassLoader();
            try {
                currentThread.setContextClassLoader(env.getClassLoader());
                ((RegionObserver) env.getInstance()).postAppend(ctx, append, result);
            } catch (Throwable e) {
                handleCoprocessorThrowable(env, e);
            } finally {
                currentThread.setContextClassLoader(cl);
            }
            if (ctx.shouldComplete()) {
                break;
            }
        }
    }
}

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From source file:org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost.java

/**
 * @param s the scanner//from   w  w w  . j a v a2s  .co  m
 * @exception IOException Exception
 */
public void postScannerClose(final InternalScanner s) throws IOException {
    ObserverContext<RegionCoprocessorEnvironment> ctx = null;
    for (RegionEnvironment env : coprocessors) {
        if (env.getInstance() instanceof RegionObserver) {
            ctx = ObserverContext.createAndPrepare(env, ctx);
            Thread currentThread = Thread.currentThread();
            ClassLoader cl = currentThread.getContextClassLoader();
            try {
                currentThread.setContextClassLoader(env.getClassLoader());
                ((RegionObserver) env.getInstance()).postScannerClose(ctx, s);
            } catch (Throwable e) {
                handleCoprocessorThrowable(env, e);
            } finally {
                currentThread.setContextClassLoader(cl);
            }
            if (ctx.shouldComplete()) {
                break;
            }
        }
    }
}

---

From source file:org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost.java

public DeleteTracker postInstantiateDeleteTracker(DeleteTracker tracker) throws IOException {
    ObserverContext<RegionCoprocessorEnvironment> ctx = null;
    for (RegionEnvironment env : coprocessors) {
        if (env.getInstance() instanceof RegionObserver) {
            ctx = ObserverContext.createAndPrepare(env, ctx);
            Thread currentThread = Thread.currentThread();
            ClassLoader cl = currentThread.getContextClassLoader();
            try {
                currentThread.setContextClassLoader(env.getClassLoader());
                tracker = ((RegionObserver) env.getInstance()).postInstantiateDeleteTracker(ctx, tracker);
            } catch (Throwable e) {
                handleCoprocessorThrowable(env, e);
            } finally {
                currentThread.setContextClassLoader(cl);
            }/*from w  w  w .j a v  a  2s.  c  o  m*/
            if (ctx.shouldComplete()) {
                break;
            }
        }
    }
    return tracker;
}

---

From source file:org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost.java

/**
 * Called after the {@link StoreFile}s to be compacted have been selected from the available
 * candidates./*w  ww . j  a v a  2 s  .c  om*/
 * @param store The store where compaction is being requested
 * @param selected The store files selected to compact
 * @param request custom compaction
 */
public void postCompactSelection(final Store store, final ImmutableList<StoreFile> selected,
        final CompactionRequest request) {
    ObserverContext<RegionCoprocessorEnvironment> ctx = null;
    for (RegionEnvironment env : coprocessors) {
        if (env.getInstance() instanceof RegionObserver) {
            ctx = ObserverContext.createAndPrepare(env, ctx);
            Thread currentThread = Thread.currentThread();
            ClassLoader cl = currentThread.getContextClassLoader();
            try {
                currentThread.setContextClassLoader(env.getClassLoader());
                ((RegionObserver) env.getInstance()).postCompactSelection(ctx, store, selected, request);
            } catch (Throwable e) {
                handleCoprocessorThrowableNoRethrow(env, e);
            } finally {
                currentThread.setContextClassLoader(cl);
            }
            if (ctx.shouldComplete()) {
                break;
            }
        }
    }
}

---

From source file:org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost.java

/**
 * Called after the store compaction has completed.
 * @param store the store being compacted
 * @param resultFile the new store file written during compaction
 * @param request the compaction that is being executed
 * @throws IOException//from w  w  w .ja  va2 s  . c  om
 */
public void postCompact(final Store store, final StoreFile resultFile, final CompactionRequest request)
        throws IOException {
    ObserverContext<RegionCoprocessorEnvironment> ctx = null;
    for (RegionEnvironment env : coprocessors) {
        if (env.getInstance() instanceof RegionObserver) {
            ctx = ObserverContext.createAndPrepare(env, ctx);
            Thread currentThread = Thread.currentThread();
            ClassLoader cl = currentThread.getContextClassLoader();
            try {
                currentThread.setContextClassLoader(env.getClassLoader());
                ((RegionObserver) env.getInstance()).postCompact(ctx, store, resultFile, request);
            } catch (Throwable e) {
                handleCoprocessorThrowable(env, e);
            } finally {
                currentThread.setContextClassLoader(cl);
            }
            if (ctx.shouldComplete()) {
                break;
            }
        }
    }
}

---

From source file:org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost.java

/**
 * @param row the row key//from  ww w . j a  va  2  s . c  om
 * @param family the family
 * @param result the result set from the region
 * @exception IOException Exception
 */
public void postGetClosestRowBefore(final byte[] row, final byte[] family, final Result result)
        throws IOException {
    ObserverContext<RegionCoprocessorEnvironment> ctx = null;
    for (RegionEnvironment env : coprocessors) {
        if (env.getInstance() instanceof RegionObserver) {
            ctx = ObserverContext.createAndPrepare(env, ctx);
            Thread currentThread = Thread.currentThread();
            ClassLoader cl = currentThread.getContextClassLoader();
            try {
                currentThread.setContextClassLoader(env.getClassLoader());
                ((RegionObserver) env.getInstance()).postGetClosestRowBefore(ctx, row, family, result);
            } catch (Throwable e) {
                handleCoprocessorThrowable(env, e);
            } finally {
                currentThread.setContextClassLoader(cl);
            }
            if (ctx.shouldComplete()) {
                break;
            }
        }
    }
}

---

From source file:org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost.java

/**
 * @param get the Get request/*from   ww  w  . java2 s  . c o  m*/
 * @param exists the result returned by the region server
 * @return the result to return to the client
 * @exception IOException Exception
 */
public boolean postExists(final Get get, boolean exists) throws IOException {
    ObserverContext<RegionCoprocessorEnvironment> ctx = null;
    for (RegionEnvironment env : coprocessors) {
        if (env.getInstance() instanceof RegionObserver) {
            ctx = ObserverContext.createAndPrepare(env, ctx);
            Thread currentThread = Thread.currentThread();
            ClassLoader cl = currentThread.getContextClassLoader();
            try {
                currentThread.setContextClassLoader(env.getClassLoader());
                exists = ((RegionObserver) env.getInstance()).postExists(ctx, get, exists);
            } catch (Throwable e) {
                handleCoprocessorThrowable(env, e);
            } finally {
                currentThread.setContextClassLoader(cl);
            }
            if (ctx.shouldComplete()) {
                break;
            }
        }
    }
    return exists;
}

---

From source file:org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost.java

/**
 * @param delete The Delete object//from  www  .j a  va2  s.  com
 * @param edit The WALEdit object.
 * @param durability The durability used
 * @exception IOException Exception
 */
public void postDelete(final Delete delete, final WALEdit edit, final Durability durability)
        throws IOException {
    ObserverContext<RegionCoprocessorEnvironment> ctx = null;
    for (RegionEnvironment env : coprocessors) {
        if (env.getInstance() instanceof RegionObserver) {
            ctx = ObserverContext.createAndPrepare(env, ctx);
            Thread currentThread = Thread.currentThread();
            ClassLoader cl = currentThread.getContextClassLoader();
            try {
                currentThread.setContextClassLoader(env.getClassLoader());
                ((RegionObserver) env.getInstance()).postDelete(ctx, delete, edit, durability);
            } catch (Throwable e) {
                handleCoprocessorThrowable(env, e);
            } finally {
                currentThread.setContextClassLoader(cl);
            }
            if (ctx.shouldComplete()) {
                break;
            }
        }
    }
}

---

From source file:org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost.java

/**
 * @param increment increment object//  w w  w.j  av a 2s .  co  m
 * @param result the result returned by postIncrement
 * @throws IOException if an error occurred on the coprocessor
 */
public Result postIncrement(final Increment increment, Result result) throws IOException {
    ObserverContext<RegionCoprocessorEnvironment> ctx = null;
    for (RegionEnvironment env : coprocessors) {
        if (env.getInstance() instanceof RegionObserver) {
            ctx = ObserverContext.createAndPrepare(env, ctx);
            Thread currentThread = Thread.currentThread();
            ClassLoader cl = currentThread.getContextClassLoader();
            try {
                currentThread.setContextClassLoader(env.getClassLoader());
                result = ((RegionObserver) env.getInstance()).postIncrement(ctx, increment, result);
            } catch (Throwable e) {
                handleCoprocessorThrowable(env, e);
            } finally {
                currentThread.setContextClassLoader(cl);
            }
            if (ctx.shouldComplete()) {
                break;
            }
        }
    }
    return result;
}

---

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