author | dadubrow |
Tue, 27 Apr 2010 13:22:04 -0500 | |
changeset 1306 | 60a69eb99c38 |
parent 894 | 48b544aebc83 |
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/* |
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* Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of the License "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: |
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* |
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*/ |
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package com.nokia.carbide.remoteconnections.interfaces; |
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import java.util.Map; |
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import com.nokia.carbide.remoteconnections.Messages; |
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import com.nokia.carbide.remoteconnections.internal.api.IConnection2.IConnectionStatus.EConnectionStatus; |
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/** |
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* Abstract base class providing implementation of in-use semantics of IConnection |
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* using a counted map of potential resource strings and implements |
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* {@link IConnection#useConnection(boolean)} allowing external clients to wait |
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* for internal clients (service testing) to complete |
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*/ |
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public abstract class AbstractSynchronizedConnection extends AbstractConnection { |
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private Object testingMutex = new Object(); |
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private boolean testing; |
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public AbstractSynchronizedConnection(IConnectionType connectionType, Map<String, String> settings) { |
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super(connectionType, settings); |
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} |
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/** |
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* @return the current resource string value of this connection |
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*/ |
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protected abstract String getCurrentResourceString(); |
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/** |
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* @return the map of values to counts - should be static to the concrete connection class |
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*/ |
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protected abstract Map<String, Integer> getResourcesMap(); |
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public boolean isInUse() { |
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String resource = getCurrentResourceString(); |
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synchronized (getResourcesMap()) { |
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return getResourcesMap().containsKey(resource); |
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} |
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} |
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public void setInUse(boolean inUse) { |
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String resource = getCurrentResourceString(); |
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synchronized (getResourcesMap()) { |
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// System.out.println((inUse?"+":"-")+resource+", thread="+Thread.currentThread().getId()); |
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if (inUse) { |
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Integer count = getResourcesMap().get(resource); |
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if (count == null) |
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count = 0; |
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getResourcesMap().put(resource, ++count); |
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} |
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else { |
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Integer count = getResourcesMap().get(resource); |
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if (count != null) { |
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count--; |
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if (count > 0) |
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getResourcesMap().put(resource, count); |
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else |
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getResourcesMap().remove(resource); |
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} |
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} |
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} |
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} |
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private void setStatus(boolean inUse) { |
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if (inUse) { |
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String label = Messages.getString("AbstractSynchronizedConnection.InUseLabel"); //$NON-NLS-1$ |
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String desc = Messages.getString("AbstractSynchronizedConnection.InUseDesc"); //$NON-NLS-1$ |
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setStatus(new ConnectionStatus(EConnectionStatus.IN_USE, label, desc)); |
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} |
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else { |
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setStatus(new ConnectionStatus(EConnectionStatus.NONE, "", "")); //$NON-NLS-1$ //$NON-NLS-2$ |
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} |
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} |
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public void setServiceTestingAndInUse(boolean value) { |
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synchronized (testingMutex) { |
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testing = value; |
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setInUse(value); |
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} |
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} |
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private boolean isTesting() { |
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synchronized (testingMutex) { |
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return testing; |
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} |
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} |
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public synchronized void useConnection(boolean use) { |
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if (use) { |
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while (isTesting()) { |
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try { |
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Thread.sleep(200); |
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// System.out.println(getDisplayName() + " was service testing"); |
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} catch (InterruptedException e) { |
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} |
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} |
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} |
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setInUse(use); |
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if (!isDynamic()) |
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setStatus(use); |
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} |
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public Object getCurrentResource() { |
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return getCurrentResourceString(); |
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} |
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} |