org.ow2.play.governance.platform.user.service.rest.AbstractService.java Source code

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Here is the source code for org.ow2.play.governance.platform.user.service.rest.AbstractService.java

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/**
 *
 * Copyright (c) 2013, Linagora
 * 
 * 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 2.1 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; without 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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA 
 *
 */
package org.ow2.play.governance.platform.user.service.rest;

import javax.ws.rs.WebApplicationException;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.Response;

import org.apache.cxf.jaxrs.ext.MessageContext;
import org.ow2.play.governance.permission.api.PermissionChecker;
import org.ow2.play.governance.platform.user.service.UserResourceAccess;
import org.ow2.play.governance.platform.user.service.oauth.OAuthHelper;
import org.ow2.play.governance.user.api.UserException;
import org.ow2.play.governance.user.api.UserService;
import org.ow2.play.governance.user.api.bean.Resource;
import org.ow2.play.governance.user.api.bean.User;

import com.google.common.base.Optional;
import com.google.common.base.Predicate;
import com.google.common.collect.Iterables;

/**
 * @author chamerling
 * 
 */
public abstract class AbstractService {

    protected UserService userService;

    protected PermissionChecker permissionChecker;

    protected UserResourceAccess userResourceAccess;

    /**
     * Injected by CXF
     * 
     */
    @Context
    protected MessageContext mc;

    protected User getUser() {
        String endUserName = OAuthHelper.resolveUserName(mc);
        try {
            // load it each time since we need to reload data...
            return userService.getUser(endUserName);
        } catch (UserException e) {
            throw new WebApplicationException(e, Response.serverError().build());
        }
    }

    /**
     * Get a user resource if present in the profile, or null if not found.
     * 
     * @param uri
     * @return
     */
    protected Resource getUserResource(final String uri, final String name) {
        Optional<Resource> optional = Iterables.tryFind(getUser().resources, new Predicate<Resource>() {
            public boolean apply(Resource input) {
                return input.uri != null && input.uri.equals(uri) && input.name != null && input.name.equals(name);
            }
        });
        if (!optional.isPresent()) {
            return null;
        }
        return optional.get();
    }

    /**
     * @param userService
     *            the userService to set
     */
    public void setUserService(UserService userService) {
        this.userService = userService;
    }

    /**
     * @param permissionChecker the permissionChecker to set
     */
    public void setPermissionChecker(PermissionChecker permissionChecker) {
        this.permissionChecker = permissionChecker;
    }

    /**
     * @param userResourceAccess the userResourceAccess to set
     */
    public void setUserResourceAccess(UserResourceAccess userResourceAccess) {
        this.userResourceAccess = userResourceAccess;
    }

}