net.sf.sail.webapp.dao.sds.impl.SdsUserUpdateCommandHttpRestImpl.java Source code

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Here is the source code for net.sf.sail.webapp.dao.sds.impl.SdsUserUpdateCommandHttpRestImpl.java

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/**
 * Copyright (c) 2006 Encore Research Group, University of Toronto
 * 
 * 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 net.sf.sail.webapp.dao.sds.impl;

import net.sf.sail.webapp.dao.sds.SdsUserUpdateCommand;
import net.sf.sail.webapp.domain.sds.SdsUser;
import net.sf.sail.webapp.domain.webservice.http.HttpPutRequest;

import org.apache.commons.httpclient.HttpStatus;

/**
 * Implementation of <code>SdsUserUpdateCommand</code> which updates a user in
 * the Sail Data Service (uses Http REST). This class is thread-safe.
 * 
 * @author Laurel Williams
 * 
 * @version $Id$
 * 
 */
public class SdsUserUpdateCommandHttpRestImpl extends AbstractHttpRestCommand implements SdsUserUpdateCommand {

    private static final ThreadLocal<SdsUser> SDS_USER = new ThreadLocal<SdsUser>();

    /**
     * @see net.sf.sail.webapp.dao.sds.SdsUserCreateCommand#setSdsUser(net.sf.sail.webapp.domain.sds.SdsUser)
     */
    public void setSdsUser(SdsUser sdsUser) {
        SDS_USER.set(sdsUser);
    }

    /**
     * Returns an SdsUser object
     * 
     * @return an SdsUser object
     */
    private SdsUser getSdsUser() {
        return SDS_USER.get();
    }

    /**
     * @see net.sf.sail.webapp.dao.sds.SdsCommand#generateRequest()
     */
    public HttpPutRequest generateRequest() {
        final SdsUser sdsUser = this.getSdsUser();
        final String bodyData = "<user><first-name>" + sdsUser.getFirstName() + "</first-name><last-name>"
                + sdsUser.getLastName() + "</last-name></user>";

        final String url = "/sail_user/" + sdsUser.getSdsObjectId();

        return new HttpPutRequest(REQUEST_HEADERS_CONTENT, bodyData, url, HttpStatus.SC_CREATED);
    }

    /**
     * @see net.sf.sail.webapp.dao.sds.SdsCommand#execute()
     */
    public SdsUser execute(final HttpPutRequest httpRequest) {
        this.transport.put(httpRequest);
        final SdsUser sdsUser = this.getSdsUser();
        // clear the thread local reference to avoid resource leak since we're
        // done executing
        SDS_USER.set(null);
        return sdsUser;
    }
}