| /* |
| * Copyright (c) 2014 Eike Stepper (Berlin, Germany) 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 |
| * |
| * Contributors: |
| * Eike Stepper - initial API and implementation |
| */ |
| package org.eclipse.oomph.projectconfig.impl; |
| |
| import org.eclipse.oomph.projectconfig.WorkspaceConfiguration; |
| import org.eclipse.oomph.projectconfig.util.ProjectConfigUtil; |
| import org.eclipse.oomph.util.IOExceptionWithCause; |
| |
| import org.eclipse.emf.common.util.URI; |
| import org.eclipse.emf.ecore.resource.Resource; |
| import org.eclipse.emf.ecore.resource.URIConverter; |
| import org.eclipse.emf.ecore.resource.impl.URIHandlerImpl; |
| |
| import org.osgi.service.prefs.BackingStoreException; |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.ByteArrayOutputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| import java.util.Collections; |
| import java.util.Map; |
| |
| /** |
| * @author Eike Stepper |
| */ |
| public class ProjectConfigURIHandlerImpl extends URIHandlerImpl |
| { |
| @Override |
| public boolean canHandle(URI uri) |
| { |
| return ProjectConfigUtil.PROJECT_CONFIG_SCHEME.equals(uri.scheme()); |
| } |
| |
| @Override |
| public InputStream createInputStream(URI uri, final Map<?, ?> options) throws IOException |
| { |
| if (uri.segmentCount() == 1) |
| { |
| class ProjectConfigInput extends InputStream implements URIConverter.Loadable |
| { |
| private InputStream in; |
| |
| public void loadResource(Resource resource) throws IOException |
| { |
| resource.getContents().addAll(ProjectConfigUtil.getWorkspaceConfiguration().eResource().getContents()); |
| } |
| |
| @Override |
| public int read() throws IOException |
| { |
| if (in == null) |
| { |
| ByteArrayOutputStream out = new ByteArrayOutputStream(); |
| ProjectConfigUtil.getWorkspaceConfiguration().eResource().save(out, null); |
| in = new ByteArrayInputStream(out.toByteArray()); |
| } |
| return in.read(); |
| } |
| } |
| |
| return new ProjectConfigInput(); |
| } |
| throw new IOException("No preference value available for "); |
| } |
| |
| @Override |
| public OutputStream createOutputStream(URI uri, Map<?, ?> options) throws IOException |
| { |
| if (uri.segmentCount() == 1) |
| { |
| class ProjectConfigOutput extends OutputStream implements URIConverter.Saveable |
| { |
| public void saveResource(Resource resource) throws IOException |
| { |
| try |
| { |
| ProjectConfigUtil.saveWorkspaceConfiguration((WorkspaceConfiguration)resource.getContents().get(0)); |
| } |
| catch (BackingStoreException ex) |
| { |
| throw new IOExceptionWithCause(ex); |
| } |
| } |
| |
| @Override |
| public void write(int b) throws IOException |
| { |
| throw new IOException("Write not supported"); |
| } |
| } |
| |
| return new ProjectConfigOutput(); |
| } |
| |
| throw new IOException("Output not supported"); |
| } |
| |
| @Override |
| public void delete(URI uri, Map<?, ?> options) throws IOException |
| { |
| throw new IOException("Delete not supported"); |
| } |
| |
| @Override |
| public boolean exists(URI uri, Map<?, ?> options) |
| { |
| // TODO |
| return false; |
| } |
| |
| @Override |
| public Map<String, ?> getAttributes(URI uri, Map<?, ?> options) |
| { |
| return Collections.emptyMap(); |
| } |
| |
| @Override |
| public void setAttributes(URI uri, Map<String, ?> attributes, Map<?, ?> options) throws IOException |
| { |
| // Do nothing. |
| } |
| } |