| /******************************************************************************* |
| * Copyright (c) 2005 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.bpel.model.util; |
| |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.List; |
| import javax.xml.namespace.QName; |
| |
| import org.eclipse.bpel.model.BPELPlugin; |
| import org.eclipse.bpel.model.Import; |
| import org.eclipse.bpel.model.resource.BPELResourceSetImpl; |
| import org.eclipse.core.runtime.IStatus; |
| import org.eclipse.emf.common.util.URI; |
| import org.eclipse.emf.ecore.EObject; |
| import org.eclipse.emf.ecore.resource.Resource; |
| import org.eclipse.xsd.XSDSchema; |
| import org.eclipse.xsd.util.XSDConstants; |
| |
| |
| /** |
| * XSD Import resolver. |
| * |
| * @author Michal Chmielewski (michal.chmielewski@oracle.com) |
| * @date Apr 17, 2007 |
| * |
| */ |
| |
| @SuppressWarnings("nls") |
| |
| public class XSDImportResolver implements ImportResolver { |
| |
| /** |
| * Report what kind of import handle. |
| * @return the schema for schema URI. |
| */ |
| |
| public String getImportType() { |
| return XSDConstants.SCHEMA_FOR_SCHEMA_URI_2001; |
| } |
| |
| /** |
| * Find and load the schema based on the import statement |
| * |
| * @param imp the import statement from the BPEL source |
| * @return the schema that it references |
| */ |
| |
| |
| protected <T extends EObject> T findAndLoad ( Import imp , String kind, Class<T> clazz ) |
| { |
| Resource baseResource = imp.eResource(); |
| String location = imp.getLocation(); |
| |
| // Bug 120110 - just bulletproofing :) |
| if (baseResource==null) |
| return null; |
| |
| if (!baseResource.getURI().isRelative()) { |
| location = URI.createURI(location).resolve(baseResource.getURI()).toString(); |
| } |
| |
| URI locationURI = URI.createURI(location); |
| |
| BPELResourceSetImpl hackedResourceSet = BPELUtils.slightlyHackedResourceSet ( imp ); |
| |
| Resource result = null; |
| try { |
| result = hackedResourceSet.getResource(locationURI, true, kind); |
| } catch (Throwable t) { |
| BPELPlugin.log("Resource " + locationURI + " cannot be read.",t,IStatus.WARNING); |
| return null; |
| } |
| |
| // There is something here |
| if (result.getContents().size() == 0) { |
| BPELPlugin.log("Resource " + locationURI + " is empty.",null,IStatus.WARNING) ; |
| return null; |
| } |
| |
| try { |
| return clazz.cast(result.getContents().get(0)); |
| } catch (Throwable t) { |
| BPELPlugin.log("Resource " + locationURI + " is not of the expected kind.",t,IStatus.WARNING) ; |
| } |
| return null; |
| } |
| |
| |
| /** |
| * Resolve an object from the import. |
| * @param imp to resolve from. |
| * @param qname of the object. |
| * @param name ? |
| * @param refType the type of resolution that we are doing. |
| * @return the resolved object. |
| */ |
| |
| public EObject resolve(Import imp, QName qname, String name, String refType) { |
| EObject result = null; |
| |
| if (getImportType().equals(imp.getImportType()) == false) { |
| return result; |
| } |
| |
| if (XSDUtil.isSchemaType(refType) == false && TOP.equals(refType) == false) { |
| return result; |
| } |
| |
| if (imp.getLocation() == null) { |
| return result ; |
| } |
| |
| XSDSchema schema = findAndLoad( imp , "xsd", XSDSchema.class); |
| |
| if (TOP.equals(refType)) { |
| return schema; |
| } |
| |
| result = XSDUtil.resolve(schema, qname, name, refType); |
| |
| return result; |
| } |
| |
| |
| /** |
| * Each XSDImport currently contributes only 1 schema. |
| * @param imp the import location |
| * @param what what to resolve |
| * @return the list of resolved items. |
| * |
| * @see org.eclipse.bpel.model.util.ImportResolver#resolveSchemas(org.eclipse.bpel.model.Import) |
| */ |
| |
| public List<Object> resolve (Import imp, int what) { |
| |
| if (getImportType().equals(imp.getImportType()) == false) { |
| return Collections.emptyList(); |
| } |
| if (what == RESOLVE_DEFINITION) { |
| return Collections.emptyList(); |
| } |
| |
| List<Object> list = new ArrayList<Object>(1); |
| XSDSchema schema = findAndLoad(imp,"xsd", XSDSchema.class); |
| if (schema != null) { |
| list.add ( schema ); |
| } |
| return list; |
| } |
| |
| } |