co.stateful.RtSttc Maven / Gradle / Ivy
/**
* Copyright (c) 2014, stateful.co
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met: 1) Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer. 2) Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution. 3) Neither the name of the stateful.co nor
* the names of its contributors may be used to endorse or promote
* products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT
* NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
* THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package co.stateful;
import co.stateful.mock.MkSttc;
import com.jcabi.aspects.Immutable;
import com.jcabi.aspects.Loggable;
import com.jcabi.http.Request;
import com.jcabi.http.request.JdkRequest;
import com.jcabi.http.response.RestResponse;
import com.jcabi.http.response.XmlResponse;
import com.jcabi.http.wire.CachingWire;
import com.jcabi.http.wire.OneMinuteWire;
import com.jcabi.http.wire.RetryWire;
import com.jcabi.http.wire.VerboseWire;
import com.jcabi.urn.URN;
import java.io.IOException;
import java.net.HttpURLConnection;
import javax.ws.rs.core.HttpHeaders;
import javax.ws.rs.core.MediaType;
import lombok.EqualsAndHashCode;
import lombok.ToString;
/**
* Stateful Entry Point.
*
* Make an instance of this class and start from there, for example,
* if you want to use a cloud lock from
* stateful.co:
*
*
Lock lock = new RtSttc(
* new URN("urn:github:12345"), "token"
* ).locks().lock("test");
*
* You need two arguments to instantiate this class: URN of the user
* and your secret token. You can get them at the home page of
* stateful.co, right on the top.
*
*
It is highly recommended to use
* {@link co.stateful.retry.ReSttc} decorator, in production
* environment.
*
* It is also highly recommended to use
* {@link co.stateful.cached.CdSttc} decorator, in production
* environment.
*
* @author Yegor Bugayenko ([email protected])
* @version $Id$
* @since 0.1
* @link Atomic Counters at Stateful.co
* @link Synchronization Between Nodes
*/
@Immutable
@Loggable(Loggable.DEBUG)
@ToString(of = { })
@EqualsAndHashCode(of = "request")
public final class RtSttc implements Sttc {
/**
* Entry request.
*/
private final transient Request request;
/**
* Ctor.
* @param urn Owner URN
* @param token Security token
*/
public RtSttc(final URN urn, final String token) {
this.request = new JdkRequest("http://www.stateful.co")
.through(OneMinuteWire.class)
.through(RetryWire.class)
.through(VerboseWire.class)
.through(CachingWire.class, "((POST|PUT|PATCH) .*|.*\\?.*)")
.header("X-Sttc-URN", urn.toString())
.header("X-Sttc-Token", token)
.header(HttpHeaders.ACCEPT, MediaType.TEXT_XML)
.header(HttpHeaders.USER_AGENT, "java-sdk.stateful.co");
}
/**
* Make an instance of it.
* @param urn Owner URN
* @param token Security token
* @return Sttc
*/
public static Sttc make(final URN urn, final String token) {
final Sttc sttc;
if (token.matches("[A-F0-9\\-]{19}")) {
sttc = new RtSttc(urn, token);
} else {
sttc = new MkSttc();
}
return sttc;
}
@Override
public Counters counters() throws IOException {
return new RtCounters(
this.request
.fetch()
.as(RestResponse.class)
.assertStatus(HttpURLConnection.HTTP_OK)
.as(XmlResponse.class)
.rel("/page/links/link[@rel='menu:counters']/@href")
);
}
@Override
public Locks locks() throws IOException {
return new RtLocks(
this.request
.fetch()
.as(RestResponse.class)
.assertStatus(HttpURLConnection.HTTP_OK)
.as(XmlResponse.class)
.rel("/page/links/link[@rel='menu:locks']/@href")
);
}
}