org.o3project.odenos.core.manager.ComponentManager2.java Source code

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Here is the source code for org.o3project.odenos.core.manager.ComponentManager2.java

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/*
 * Copyright 2015 NEC Corporation.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.o3project.odenos.core.manager;

import org.apache.commons.lang.StringUtils;
import org.o3project.odenos.remoteobject.ObjectProperty;
import org.o3project.odenos.remoteobject.RemoteObject;
import org.o3project.odenos.remoteobject.RemoteObjectManager;
import org.o3project.odenos.remoteobject.RequestParser;
import org.o3project.odenos.remoteobject.manager.component.ComponentType;
import org.o3project.odenos.remoteobject.message.MessageBodyUnpacker.ParseBodyException;
import org.o3project.odenos.remoteobject.message.Request;
import org.o3project.odenos.remoteobject.message.Response;
import org.o3project.odenos.remoteobject.messagingclient.MessageDispatcher;

import java.lang.reflect.Constructor;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;

public class ComponentManager2 extends RemoteObjectManager {

    public static final String ATTR_COMPTYPE = "component_types";
    private static final String COMP_ID = "comp_id";

    /**
     * Constructor.
     * @param id Object id.
     * @param disp Message Dispatcher object.
     */
    public ComponentManager2(String id, MessageDispatcher disp) {
        super(id, disp);
        this.objectProperty.setProperty(ATTR_COMPTYPE, "");
        parser = this.createParser();
    }

    public void registerComponents(Set<Class<? extends RemoteObject>> classes) {
        this.registerRemoteObjects(classes);
        this.objectProperty.setProperty(ATTR_COMPTYPE, StringUtils.join(classList.keySet(), ","));
    }

    @Override
    protected RequestParser<IActionCallback> createParser() {
        return new RequestParser<IActionCallback>() {
            {
                addRule(Request.Method.GET, "component_types", new IActionCallback() {
                    @Override
                    public Response process(final RequestParser<IActionCallback>.ParsedRequest parsed) {
                        return getComponentTypes();
                    }
                });
                addRule(Request.Method.GET, "components", new IActionCallback() {
                    @Override
                    public Response process(final RequestParser<IActionCallback>.ParsedRequest parsed) {
                        return getRemoteObjects();
                    }
                });
                addRule(Request.Method.GET, "components/<comp_id>", new IActionCallback() {
                    @Override
                    public Response process(final RequestParser<IActionCallback>.ParsedRequest parsed) {
                        return getRemoteObject(parsed.getParam(COMP_ID));
                    }
                });
                addRule(Request.Method.PUT, "components/<comp_id>", new IActionCallback() {
                    @Override
                    public Response process(final RequestParser<IActionCallback>.ParsedRequest parsed)
                            throws ParseBodyException {
                        return createRemoteObject(parsed.getParam(COMP_ID),
                                parsed.getRequest().getBody(ObjectProperty.class));
                    }
                });
                addRule(Request.Method.DELETE, "components/<comp_id>", new IActionCallback() {
                    @Override
                    public Response process(final RequestParser<IActionCallback>.ParsedRequest parsed) {
                        return deleteRemoteObject(parsed.getParam(COMP_ID));
                    }
                });
            }
        };
    }

    protected Response getComponentTypes() {
        Map<String, ComponentType> compTypes = new HashMap<>();

        for (String cmType : classList.keySet()) {
            RemoteObject component = null;
            String objectId = String.format("%s_%s", this.getObjectId(), cmType);
            try {
                Class<? extends RemoteObject> componentClass = classList.get(cmType);
                Constructor<? extends RemoteObject> ct = null;
                try {
                    ct = componentClass.getConstructor(String.class, MessageDispatcher.class);
                    component = ct.newInstance(objectId, null);
                } catch (NoSuchMethodException e) {
                    ct = componentClass.getConstructor(String.class, String.class, MessageDispatcher.class);
                    component = ct.newInstance(objectId, objectProperty.getBaseUri(), null);
                }
                ObjectProperty objProp = component.getProperty();
                String type = objProp.getProperty(ObjectProperty.PropertyNames.OBJECT_TYPE);
                String superType = objProp.getProperty(ObjectProperty.PropertyNames.OBJECT_SUPER_TYPE);

                Map<String, String> connectionTypes = new HashMap<>();
                String connectionTypesStr = objProp.getProperty(ObjectProperty.PropertyNames.CONNECTION_TYPES);
                String[] connStrList = connectionTypesStr.split(",");
                for (String connTypeElem : connStrList) {
                    String[] connTypeElemList = connTypeElem.split(":");
                    if (connTypeElemList.length == 2) {
                        connectionTypes.put(connTypeElemList[0], connTypeElemList[1]);
                    }
                }

                String description = objProp.getProperty(ObjectProperty.PropertyNames.DESCRIPTION);
                compTypes.put(type, new ComponentType(type, superType, connectionTypes, description));
            } catch (Exception e) {
                return new Response(Response.INTERNAL_SERVER_ERROR, e.getMessage());
            }
        }
        return new Response(Response.OK, compTypes);
    }

}