org.symbian.tools.mtw.core/src/org/symbian/tools/mtw/core/internal/runtimes/LazyPackager.java
author Eugene Ostroukhov <eugeneo@symbian.org>
Thu, 29 Jul 2010 10:51:59 -0700
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permissions -rw-r--r--
Refactored packager and deployer interfaces
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/**
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 * Copyright (c) 2010 Symbian Foundation 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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 * Symbian Foundation - initial contribution.
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 * Contributors:
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 * Description:
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 * Overview:
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 * Details:
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 * Platforms/Drives/Compatibility:
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 * Assumptions/Requirement/Pre-requisites:
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 * Failures and causes:
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 */
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package org.symbian.tools.mtw.core.internal.runtimes;
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import java.io.File;
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import org.eclipse.core.resources.IResource;
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import org.eclipse.core.runtime.CoreException;
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import org.eclipse.core.runtime.IConfigurationElement;
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import org.eclipse.core.runtime.IPath;
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import org.eclipse.core.runtime.IProgressMonitor;
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import org.symbian.tools.mtw.core.MTWCore;
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import org.symbian.tools.mtw.core.projects.IMTWProject;
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import org.symbian.tools.mtw.core.runtimes.IMobileWebRuntime;
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import org.symbian.tools.mtw.core.runtimes.IPackager;
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import org.symbian.tools.mtw.core.runtimes.IPackagerDelegate;
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public class LazyPackager implements IPackager {
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    private final IConfigurationElement element;
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    private IPackagerDelegate packager;
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    public LazyPackager(IConfigurationElement element) {
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        this.element = element;
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    }
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    public File packageApplication(IMTWProject project, IProgressMonitor monitor)
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            throws CoreException {
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        return getPackager().packageApplication(project, monitor);
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    }
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    private IPackagerDelegate getPackager() {
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        if (packager == null) {
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            try {
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                packager = (IPackagerDelegate) element.createExecutableExtension("delegate");
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            } catch (CoreException e) {
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                MTWCore.log(String.format("Cannot instantiate %s from plugin %s", element.getAttribute("delegate"),
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                        element.getDeclaringExtension().getNamespaceIdentifier()), e);
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                throw new RuntimeException(e);
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            }
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        }
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        return packager;
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    }
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    public IPath getPathInPackage(IResource resource) {
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        return getPackager().getPathInPackage(resource);
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    }
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    public String getFileType(IMTWProject project) {
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        return getPackager().getFileType(project);
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    }
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    public IMobileWebRuntime getTargetRuntime() {
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        String id = element.getAttribute("targetRuntime");
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        if (id != null) {
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            return MTWCore.getDefault().getRuntimesManager().getRuntime(id);
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        } else {
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            return getSourceRuntime();
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        }
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    }
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    public IMobileWebRuntime getSourceRuntime() {
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        IMobileWebRuntime runtime = MTWCore.getDefault().getRuntimesManager()
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                .getRuntime(element.getAttribute("sourceRuntime"));
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        return runtime;
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    }
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}