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CRISTAL-iSE REST API Module
/**
* This file is part of the CRISTAL-iSE REST API.
* Copyright (c) 2001-2016 The CRISTAL Consortium. All rights reserved.
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation; either version 3 of the License, or (at
* your option) any later version.
*
* This library is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; with out even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
* License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library; if not, write to the Free Software Foundation,
* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
*
* http://www.fsf.org/licensing/licenses/lgpl.html
*/
package org.cristalise.restapi;
import static org.cristalise.kernel.persistency.ClusterType.VIEWPOINT;
import static org.cristalise.kernel.process.resource.BuiltInResources.COMP_ACT_DESC_RESOURCE;
import static org.cristalise.kernel.process.resource.BuiltInResources.ELEM_ACT_DESC_RESOURCE;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.LinkedHashMap;
import java.util.Map;
import javax.ws.rs.core.NewCookie;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.Response.Status;
import javax.ws.rs.core.UriInfo;
import org.cristalise.kernel.common.InvalidDataException;
import org.cristalise.kernel.common.ObjectNotFoundException;
import org.cristalise.kernel.entity.proxy.ItemProxy;
import org.cristalise.kernel.lookup.DomainPath;
import org.cristalise.kernel.lookup.Lookup.PagedResult;
import org.cristalise.kernel.lookup.Path;
import org.cristalise.kernel.process.Gateway;
import org.cristalise.kernel.process.resource.BuiltInResources;
import org.cristalise.kernel.property.Property;
import org.cristalise.kernel.utils.LocalObjectLoader;
import org.exolab.castor.mapping.MappingException;
import org.exolab.castor.xml.MarshalException;
import org.exolab.castor.xml.ValidationException;
import org.json.XML;
public class ResourceAccess extends ItemUtils {
public Response.ResponseBuilder listAllResources(BuiltInResources resource, UriInfo uri, int start, int batchSize, NewCookie cookie) {
DomainPath searchRoot = new DomainPath(resource.getTypeRoot());
ArrayList props = new ArrayList<>();
if (resource == ELEM_ACT_DESC_RESOURCE) {
props.add(new Property("Type", "ActivityDesc"));
props.add(new Property("Complexity", "Elementary"));
}
else if (resource == COMP_ACT_DESC_RESOURCE) {
props.add(new Property("Type", "ActivityDesc"));
props.add(new Property("Complexity", "Composite"));
}
else {
props.add(new Property("Type", resource.getSchemaName()));
}
PagedResult pr = Gateway.getLookup().search(searchRoot, props, start, batchSize);
ArrayList> resourceArray = new ArrayList<>();
for (Path p: pr.rows) {
LinkedHashMap resourceNameData = new LinkedHashMap<>();
try {
ItemProxy proxy = Gateway.getProxyManager().getProxy(p.getItemPath());
String name = proxy.getName();
resourceNameData.put("name", name );
resourceNameData.put("url", uri.getAbsolutePathBuilder().path(name).build().toString());
resourceArray.add(resourceNameData);
}
catch (ObjectNotFoundException e) {
resourceNameData.put("name", "Path not found for name:"+p.getName());
}
}
return toJSON(getPagedResult(uri, start, batchSize, pr.maxRows, resourceArray), cookie);
}
public Response.ResponseBuilder listResourceVersions(BuiltInResources resource, String name, UriInfo uri, NewCookie cookie) {
String resourceTypeName = resource.getSchemaName();
if (resource == ELEM_ACT_DESC_RESOURCE || resource == COMP_ACT_DESC_RESOURCE) resourceTypeName = "ActivityDesc";
Iterator iter = Gateway.getLookup().search(new DomainPath("/desc/" + resourceTypeName), name);
if (!iter.hasNext()) {
throw new WebAppExceptionBuilder().message(resourceTypeName + " not found").status(Status.NOT_FOUND).build();
}
try {
ItemProxy item = Gateway.getProxyManager().getProxy(iter.next());
return toJSON(getResourceVersions(item, VIEWPOINT + "/" + resource.getSchemaName(), name, uri, cookie), cookie);
}
catch (ObjectNotFoundException e) {
throw new WebAppExceptionBuilder().message(resourceTypeName + " has no versions").status(Status.NOT_FOUND).newCookie(cookie).build();
}
}
public ArrayList> getResourceVersions(ItemProxy item, String clusterPath, String name, UriInfo uri, NewCookie cookie) {
try {
String[] children = item.getContents(clusterPath);
ArrayList> childrenData = new ArrayList<>();
for (String childName: children) {
// exclude 'last' from result to contain versions only
if (childName.equals("last")) continue;
LinkedHashMap childData = new LinkedHashMap<>();
childData.put("version", childName);
childData.put("url", uri.getAbsolutePathBuilder().path(childName).build());
childrenData.add(childData);
}
return childrenData;
}
catch (ObjectNotFoundException e) {
throw new WebAppExceptionBuilder().exception(e).newCookie(cookie).build();
}
}
public Response.ResponseBuilder getResource(BuiltInResources resource, String name, Integer version, boolean json, NewCookie cookie) {
try {
String result;
switch (resource) {
case SCHEMA_RESOURCE:
result = LocalObjectLoader.getSchema(name,version).getSchemaData();
break;
case STATE_MACHINE_RESOURCE:
result = Gateway.getMarshaller().marshall(LocalObjectLoader.getStateMachine(name,version));
break;
case SCRIPT_RESOURCE:
result = LocalObjectLoader.getScript(name,version).getScriptData();
break;
case QUERY_RESOURCE:
result = LocalObjectLoader.getQuery(name,version).getQueryXML();
break;
case ELEM_ACT_DESC_RESOURCE:
result = Gateway.getMarshaller().marshall(LocalObjectLoader.getElemActDef(name,version));
break;
case COMP_ACT_DESC_RESOURCE:
result = Gateway.getMarshaller().marshall(LocalObjectLoader.getCompActDef(name,version));
break;
default:
throw new WebAppExceptionBuilder()
.message(resource.name()+" "+name+" v"+version+" not handle")
.status(Status.BAD_REQUEST)
.build();
}
if(json) result = XML.toJSONObject(result, true).toString();
return Response.ok(result);
}
catch (ObjectNotFoundException e) {
throw new WebAppExceptionBuilder(resource.name()+" "+name+" v"+version+" does not exist", e, Status.NOT_FOUND, cookie).build();
}
catch (InvalidDataException e) {
throw new WebAppExceptionBuilder(resource.name()+" "+name+" v"+version+" does not point to any data", e, Status.NOT_FOUND, cookie).build();
}
catch (MarshalException | ValidationException | IOException | MappingException e) {
throw new WebAppExceptionBuilder(resource.name()+" "+name+" v"+version+" xml convert problem", e, Status.INTERNAL_SERVER_ERROR, cookie).build();
}
}
}