spring StompTextMessageBuilder 源码
spring StompTextMessageBuilder 代码
文件路径：/spring-websocket/src/test/java/org/springframework/web/socket/messaging/StompTextMessageBuilder.java
/*
* Copyright 2002-2021 the original author or authors.
*
* 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
*
* https://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.springframework.web.socket.messaging;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import org.springframework.messaging.simp.stomp.StompCommand;
import org.springframework.web.socket.TextMessage;
/**
* A builder for creating WebSocket messages with STOMP frame content.
*
* @author Rossen Stoyanchev
*/
public class StompTextMessageBuilder {
private StompCommand command;
private final List<String> headerLines = new ArrayList<>();
private String body;
private StompTextMessageBuilder(StompCommand command) {
this.command = command;
}
public static StompTextMessageBuilder create(StompCommand command) {
return new StompTextMessageBuilder(command);
}
public StompTextMessageBuilder headers(String... headerLines) {
this.headerLines.addAll(Arrays.asList(headerLines));
return this;
}
public StompTextMessageBuilder body(String body) {
this.body = body;
return this;
}
public TextMessage build() {
StringBuilder sb = new StringBuilder(this.command.name()).append('\n');
for (String line : this.headerLines) {
sb.append(line).append('\n');
}
sb.append('\n');
if (this.body != null) {
sb.append(this.body);
}
sb.append('\u0000');
return new TextMessage(sb.toString());
}
}
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