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HttpPublishTarget.java
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HttpPublishTarget.java
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/*
* Copyright (c) 2019 Contributors to the Eclipse Foundation
*
* See the NOTICE file(s) distributed with this work for additional
* information regarding copyright ownership.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License 2.0 which is available at
* http://www.eclipse.org/legal/epl-2.0
*
* SPDX-License-Identifier: EPL-2.0
*/
package org.eclipse.ditto.connectivity.service.messaging.httppush;
import java.util.Objects;
import java.util.Optional;
import javax.annotation.concurrent.Immutable;
import org.eclipse.ditto.connectivity.service.messaging.PublishTarget;
import org.apache.pekko.http.javadsl.model.HttpMethod;
import org.apache.pekko.http.javadsl.model.HttpMethods;
/**
* A HTTP target to which messages can be published.
*/
@Immutable
final class HttpPublishTarget implements PublishTarget {
private static final String METHOD_SEPARATOR = ":";
private static final HttpMethod FALLBACK_METHOD = HttpMethods.POST;
private final HttpMethod method;
private final String pathWithQuery;
private HttpPublishTarget(final HttpMethod method, final String pathWithQuery) {
this.method = method;
this.pathWithQuery = pathWithQuery;
}
/**
* @return the Akka HTTP method to use for the HTTP request.
*/
HttpMethod getMethod() {
return method;
}
/**
* @return the complete path including optional query parameters to use for the HTTP request.
*/
String getPathWithQuery() {
return pathWithQuery;
}
/**
* Creates a new HttpPublishTarget instance based on the passed {@code targetAddress} which is of format:
* <pre>
* {@code
* <HTTP_METHOD>:/<HTTP_PATH_INCL_PARAMS>
* }
* </pre>
* E.g.: {@code POST:/api/1/foo?bar=bla}
*
* @param targetAddress the target address in format {@code <HTTP_METHOD>:/<HTTP_PATH_INCL_PARAMS>}
* @return the created HttpPublishTarget
*/
static HttpPublishTarget of(final String targetAddress) {
final String[] methodAndPath = splitMethodAndPath(targetAddress);
if (methodAndPath.length == 2) {
final Optional<HttpMethod> method = HttpMethods.lookup(methodAndPath[0]);
if (method.isPresent()) {
return new HttpPublishTarget(method.get(), methodAndPath[1]);
}
}
// Fallback: default method with entire target address as path.
// HttpPublisherActorTest relies on the fallback even as it should never happen for valid connections.
return new HttpPublishTarget(FALLBACK_METHOD, targetAddress);
}
static String[] splitMethodAndPath(final String targetAddress) {
return targetAddress.split(METHOD_SEPARATOR, 2);
}
@Override
public boolean equals(final Object o) {
if (this == o) {
return true;
}
if (o == null || getClass() != o.getClass()) {
return false;
}
final HttpPublishTarget that = (HttpPublishTarget) o;
return Objects.equals(method, that.method) &&
Objects.equals(pathWithQuery, that.pathWithQuery);
}
@Override
public int hashCode() {
return Objects.hash(method, pathWithQuery);
}
@Override
public String toString() {
return getClass().getSimpleName() + " [" +
"method=" + method +
", pathWithQuery=" + pathWithQuery +
"]";
}
}