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/*******************************************************************************
* Copyright (c) 2012-2013 University of Stuttgart.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* and the Apache License 2.0 which both accompany this distribution,
* and are available at http://www.eclipse.org/legal/epl-v10.html
* and http://www.apache.org/licenses/LICENSE-2.0
*
* Contributors:
* Oliver Kopp - initial API and implementation
*******************************************************************************/
package org.eclipse.winery.repository.resources.entitytypes.nodetypes.reqandcapdefs;
import java.lang.reflect.Method;
import java.util.List;
import javax.ws.rs.FormParam;
import javax.ws.rs.GET;
import javax.ws.rs.PUT;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import javax.xml.namespace.QName;
import org.eclipse.winery.model.tosca.TCapabilityDefinition;
import org.eclipse.winery.model.tosca.TConstraint;
import org.eclipse.winery.model.tosca.TRequirementDefinition;
import org.eclipse.winery.repository.backend.BackendUtils;
import org.eclipse.winery.repository.resources.ConstraintsResource;
import org.eclipse.winery.repository.resources._support.collections.IIdDetermination;
import org.eclipse.winery.repository.resources._support.collections.withid.EntityWithIdResource;
import org.eclipse.winery.repository.resources.entitytypes.nodetypes.NodeTypeResource;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Bundles common properties of TRequirementDefinition and TCapabilityDefinition
*
* We agreed in the project not to modify org.eclipse.winery.model.tosca.
* Therefore, this resource models the common properties of a
* TRequirementDefinition and a TCapabilityDefinition
*/
public abstract class AbstractReqOrCapDefResource<ReqOrCapDef> extends EntityWithIdResource<ReqOrCapDef> implements IIdDetermination<ReqOrCapDef> {
private static final Logger logger = LoggerFactory.getLogger(AbstractReqOrCapDefResource.class);
protected NodeTypeResource parent;
// the capability or the requirement
private Object reqOrCapDef;
private List<TConstraint> constraints;
/**
* @param constraints additional parameter (in comparison to the constructor
* of EntityWithIdResource) as we require that sublist for the
* constrinats sub resource
*/
public AbstractReqOrCapDefResource(IIdDetermination<ReqOrCapDef> idDetermination, ReqOrCapDef reqOrCapDef, int idx, List<ReqOrCapDef> list, NodeTypeResource res, List<TConstraint> constraints) {
super(idDetermination, reqOrCapDef, idx, list, res);
assert ((reqOrCapDef instanceof TRequirementDefinition) || (reqOrCapDef instanceof TCapabilityDefinition));
this.parent = res;
this.reqOrCapDef = reqOrCapDef;
this.constraints = constraints;
}
@GET
@Path("name")
public String getName() {
return (String) this.invokeGetter("getName");
}
static String getName(Object reqOrCapDef) {
return (String) AbstractReqOrCapDefResource.invokeGetter(reqOrCapDef, "getName");
}
@GET
@Path("lowerbound")
public int getLowerBound() {
return (int) this.invokeGetter("getLowerBound");
}
@GET
@Path("upperbound")
public String getUpperBound() {
return (String) this.invokeGetter("getUpperBound");
}
@PUT
@Path("name")
public Response setName(@FormParam(value = "name") String name) {
// TODO: type check - see also min/max Instance of a node template
this.invokeSetter("setName", name);
return BackendUtils.persist(this.parent);
}
@PUT
@Path("lowerbound")
public Response setLowerBound(@FormParam(value = "lowerbound") String value) {
// TODO: type check
this.invokeSetter("setLowerBound", value);
return BackendUtils.persist(this.parent);
}
@PUT
@Path("upperbound")
public Response setUpperBound(@FormParam(value = "upperbound") String value) {
// TODO: type check
this.invokeSetter("setUpperBound", value);
return BackendUtils.persist(this.parent);
}
@Path("constraints/")
public ConstraintsResource getConstraintsResource() {
return new ConstraintsResource(this.constraints, this.parent);
}
private static Object invokeGetter(Object reqOrCapDef, String getterName) {
Method method;
Object res;
try {
method = reqOrCapDef.getClass().getMethod(getterName);
res = method.invoke(reqOrCapDef);
} catch (Exception e) {
AbstractReqOrCapDefResource.logger.error("Could not invoke getter {}", getterName, e);
throw new IllegalStateException(e);
}
return res;
}
private Object invokeGetter(String getterName) {
return AbstractReqOrCapDefResource.invokeGetter(this.reqOrCapDef, getterName);
}
/**
* Quick hack method for RequirementOrCapabilityDefinitionsResource
*/
static void invokeSetter(Object reqOrCapDef, String setterName, Object value) {
Method method;
try {
method = reqOrCapDef.getClass().getMethod(setterName, value.getClass());
method.invoke(reqOrCapDef, value);
} catch (Exception e) {
AbstractReqOrCapDefResource.logger.error("Could not invoke setter {}", setterName, e);
throw new IllegalStateException(e);
}
}
private void invokeSetter(String setterName, Object value) {
AbstractReqOrCapDefResource.invokeSetter(this.reqOrCapDef, setterName, value);
}
@GET
@Path("type")
@Produces(MediaType.TEXT_PLAIN)
public String getTypeAsString() {
return this.getType().toString();
}
/**
* required by the JSP.
*
* Therefore, we have two getters for the type: QName for the JSP and String
* for REST clients
*/
public abstract QName getType();
/**
* Required by reqandcapdefs.jsp
*/
public Object getDef() {
return this.reqOrCapDef;
}
}
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