Fix checkstyle issues in module sal-dom-broker

[controller.git] / opendaylight / md-sal / sal-dom-broker / src / main / java / org / opendaylight / controller / md / sal / dom / broker / impl / AbstractDOMForwardedCompositeTransaction.java

diff --git a/opendaylight/md-sal/sal-dom-broker/src/main/java/org/opendaylight/controller/md/sal/dom/broker/impl/AbstractDOMForwardedCompositeTransaction.java b/opendaylight/md-sal/sal-dom-broker/src/main/java/org/opendaylight/controller/md/sal/dom/broker/impl/AbstractDOMForwardedCompositeTransaction.java
index d3791a08782b6cbdf0217b85834af12bbf1b9fab..ad2b2f0ac6f6bb7a20d33a69ce3339333d38e1ae 100644 (file)
--- a/opendaylight/md-sal/sal-dom-broker/src/main/java/org/opendaylight/controller/md/sal/dom/broker/impl/AbstractDOMForwardedCompositeTransaction.java
+++ b/opendaylight/md-sal/sal-dom-broker/src/main/java/org/opendaylight/controller/md/sal/dom/broker/impl/AbstractDOMForwardedCompositeTransaction.java
@@ -1,22 +1,25 @@
 /*
  * Copyright (c) 2014 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.md.sal.dom.broker.impl;
 
+import com.google.common.base.Preconditions;
+import java.util.Collection;
+import java.util.Map;
 import org.opendaylight.controller.md.sal.common.api.data.AsyncTransaction;
 import org.opendaylight.controller.sal.core.spi.data.DOMStoreTransaction;
 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
 
-import com.google.common.base.Preconditions;
-import com.google.common.collect.ImmutableMap;
-
 /**
  * Composite DOM Transaction backed by {@link DOMStoreTransaction}.
  *
+ * <p>
  * Abstract base for composite transaction, which provides access only to common
  * functionality as retrieval of subtransaction, close method and retrieval of
  * identifier.
@@ -29,11 +32,10 @@ import com.google.common.collect.ImmutableMap;
 abstract class AbstractDOMForwardedCompositeTransaction<K, T extends DOMStoreTransaction> implements
         AsyncTransaction<YangInstanceIdentifier, NormalizedNode<?, ?>> {
 
-    private final ImmutableMap<K, T> backingTxs;
+    private final Map<K, T> backingTxs;
     private final Object identifier;
 
     /**
-     *
      * Creates new composite Transactions.
      *
      * @param identifier
@@ -41,7 +43,7 @@ abstract class AbstractDOMForwardedCompositeTransaction<K, T extends DOMStoreTra
      * @param backingTxs
      *            Key,value map of backing transactions.
      */
-    protected AbstractDOMForwardedCompositeTransaction(final Object identifier, final ImmutableMap<K, T> backingTxs) {
+    protected AbstractDOMForwardedCompositeTransaction(final Object identifier, final Map<K, T> backingTxs) {
         this.identifier = Preconditions.checkNotNull(identifier, "Identifier should not be null");
         this.backingTxs = Preconditions.checkNotNull(backingTxs, "Backing transactions should not be null");
     }
@@ -49,8 +51,8 @@ abstract class AbstractDOMForwardedCompositeTransaction<K, T extends DOMStoreTra
     /**
      * Returns subtransaction associated with supplied key.
      *
-     * @param key
-     * @return
+     * @param key key
+     * @return subtransaction
      * @throws NullPointerException
      *             if key is null
      * @throws IllegalArgumentException
@@ -58,15 +60,17 @@ abstract class AbstractDOMForwardedCompositeTransaction<K, T extends DOMStoreTra
      */
     protected final T getSubtransaction(final K key) {
         Preconditions.checkNotNull(key, "key must not be null.");
-        Preconditions.checkArgument(backingTxs.containsKey(key), "No subtransaction associated with %s", key);
-        return backingTxs.get(key);
+
+        final T ret = backingTxs.get(key);
+        Preconditions.checkArgument(ret != null, "No subtransaction associated with %s", key);
+        return ret;
     }
 
     /**
      * Returns immutable Iterable of all subtransactions.
      *
      */
-    protected Iterable<T> getSubtransactions() {
+    protected Collection<T> getSubtransactions() {
         return backingTxs.values();
     }
 
@@ -75,11 +79,11 @@ abstract class AbstractDOMForwardedCompositeTransaction<K, T extends DOMStoreTra
         return identifier;
     }
 
+    @SuppressWarnings("checkstyle:IllegalCatch")
     protected void closeSubtransactions() {
         /*
-         *  We share one exception for all failures, which are added
-         *  as supressedExceptions to it.
-         *
+         * We share one exception for all failures, which are added
+         * as supressedExceptions to it.
          */
         IllegalStateException failure = null;
         for (T subtransaction : backingTxs.values()) {
@@ -87,17 +91,17 @@ abstract class AbstractDOMForwardedCompositeTransaction<K, T extends DOMStoreTra
                 subtransaction.close();
             } catch (Exception e) {
                 // If we did not allocated failure we allocate it
-                if(failure == null) {
-                    failure = new IllegalStateException("Uncaught exception occured during closing transaction.", e);
+                if (failure == null) {
+                    failure = new IllegalStateException("Uncaught exception occured during closing transaction", e);
                 } else {
-                    // We update it with addotional exceptions, which occured during error.
+                    // We update it with additional exceptions, which occurred during error.
                     failure.addSuppressed(e);
                 }
             }
         }
         // If we have failure, we throw it at after all attempts to close.
-        if(failure != null) {
+        if (failure != null) {
             throw failure;
         }
     }
-}
\ No newline at end of file
+}