Remove CSS code
[controller.git] / opendaylight / config / config-manager / src / main / java / org / opendaylight / controller / config / manager / impl / osgi / BlankTransactionServiceTracker.java
diff --git a/opendaylight/config/config-manager/src/main/java/org/opendaylight/controller/config/manager/impl/osgi/BlankTransactionServiceTracker.java b/opendaylight/config/config-manager/src/main/java/org/opendaylight/controller/config/manager/impl/osgi/BlankTransactionServiceTracker.java
deleted file mode 100644 (file)
index 2649b14..0000000
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@@ -1,112 +0,0 @@
-/*
- * Copyright (c) 2013, 2017 Cisco Systems, Inc. and others.  All rights reserved.
- *
- * This program and the accompanying materials are made available under the
- * terms of the Eclipse Public License v1.0 which accompanies this distribution,
- * and is available at http://www.eclipse.org/legal/epl-v10.html
- */
-package org.opendaylight.controller.config.manager.impl.osgi;
-
-import com.google.common.annotations.VisibleForTesting;
-import com.google.common.util.concurrent.ThreadFactoryBuilder;
-import java.util.concurrent.ExecutorService;
-import java.util.concurrent.Executors;
-import javax.management.ObjectName;
-import org.opendaylight.controller.config.api.ConflictingVersionException;
-import org.opendaylight.controller.config.api.ValidationException;
-import org.opendaylight.controller.config.api.jmx.CommitStatus;
-import org.opendaylight.controller.config.manager.impl.ConfigRegistryImpl;
-import org.opendaylight.controller.config.spi.ModuleFactory;
-import org.osgi.framework.ServiceReference;
-import org.osgi.util.tracker.ServiceTrackerCustomizer;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-/**
- * Every time factory is added or removed, blank transaction is triggered to
- * handle.
- */
-public class BlankTransactionServiceTracker implements ServiceTrackerCustomizer<ModuleFactory, Object> {
-    private static final Logger LOG = LoggerFactory.getLogger(BlankTransactionServiceTracker.class);
-
-    public static final int DEFAULT_MAX_ATTEMPTS = 10;
-
-    private final BlankTransaction blankTransaction;
-    private final ExecutorService txExecutor;
-    private final int maxAttempts;
-
-    public BlankTransactionServiceTracker(final ConfigRegistryImpl configRegistry) {
-        this(() -> {
-            ObjectName tx = configRegistry.beginConfig(true);
-            return configRegistry.commitConfig(tx);
-        });
-    }
-
-    public BlankTransactionServiceTracker(final BlankTransaction blankTransaction) {
-        this(blankTransaction, DEFAULT_MAX_ATTEMPTS, Executors
-                .newSingleThreadExecutor(new ThreadFactoryBuilder().setNameFormat("config-blank-txn-%d").build()));
-    }
-
-    @VisibleForTesting
-    BlankTransactionServiceTracker(final BlankTransaction blankTx, final int maxAttempts,
-            final ExecutorService txExecutor) {
-        this.blankTransaction = blankTx;
-        this.maxAttempts = maxAttempts;
-        this.txExecutor = txExecutor;
-    }
-
-    @Override
-    public Object addingService(final ServiceReference<ModuleFactory> moduleFactoryServiceReference) {
-        blankTransactionAsync();
-        return null;
-    }
-
-    private void blankTransactionAsync() {
-        txExecutor.execute(this::blankTransactionSync);
-    }
-
-    void blankTransactionSync() {
-        // race condition check: config-persister might push new configuration while
-        // server is starting up.
-        ConflictingVersionException lastException = null;
-        for (int i = 0; i < maxAttempts; i++) {
-            try {
-                // create transaction
-                CommitStatus commitStatus = blankTransaction.hit();
-                LOG.debug("Committed blank transaction with status {}", commitStatus);
-                return;
-            } catch (final ConflictingVersionException e) {
-                lastException = e;
-                try {
-                    Thread.sleep(1000);
-                } catch (final InterruptedException interruptedException) {
-                    Thread.currentThread().interrupt();
-                    LOG.debug("blankTransactionSync was interrupted");
-                    return;
-                }
-            } catch (final ValidationException e) {
-                LOG.error("Validation exception while running blank transaction indicates programming error", e);
-            }
-        }
-
-        LOG.error("Maximal number of attempts reached and still cannot get optimistic lock from config manager",
-                lastException);
-    }
-
-    @Override
-    public void modifiedService(final ServiceReference<ModuleFactory> moduleFactoryServiceReference,
-            final Object object) {
-        blankTransactionAsync();
-    }
-
-    @Override
-    public void removedService(final ServiceReference<ModuleFactory> moduleFactoryServiceReference,
-            final Object object) {
-        blankTransactionAsync();
-    }
-
-    @VisibleForTesting
-    interface BlankTransaction {
-        CommitStatus hit() throws ValidationException, ConflictingVersionException;
-    }
-}