hadoop DeleteOpParam 源码
haddop DeleteOpParam 代码
文件路径：/hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/web/resources/DeleteOpParam.java
/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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
*
* http://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.apache.hadoop.hdfs.web.resources;
import java.net.HttpURLConnection;
/** Http DELETE operation parameter. */
public class DeleteOpParam extends HttpOpParam<DeleteOpParam.Op> {
/** Delete operations. */
public enum Op implements HttpOpParam.Op {
DELETE(HttpURLConnection.HTTP_OK),
DELETESNAPSHOT(HttpURLConnection.HTTP_OK),
NULL(HttpURLConnection.HTTP_NOT_IMPLEMENTED);
final int expectedHttpResponseCode;
Op(final int expectedHttpResponseCode) {
this.expectedHttpResponseCode = expectedHttpResponseCode;
}
@Override
public HttpOpParam.Type getType() {
return HttpOpParam.Type.DELETE;
}
@Override
public boolean getRequireAuth() {
return false;
}
@Override
public boolean getDoOutput() {
return false;
}
@Override
public boolean getRedirect() {
return false;
}
@Override
public int getExpectedHttpResponseCode() {
return expectedHttpResponseCode;
}
@Override
public String toQueryString() {
return NAME + "=" + this;
}
}
private static final Domain<Op> DOMAIN = new Domain<>(NAME, Op.class);
/**
* Constructor.
* @param str a string representation of the parameter value.
*/
public DeleteOpParam(final String str) {
super(DOMAIN, getOp(str));
}
private static Op getOp(String str) {
try {
return DOMAIN.parse(str);
} catch (IllegalArgumentException e) {
throw new IllegalArgumentException(str + " is not a valid " + Type.DELETE
+ " operation.");
}
}
@Override
public String getName() {
return NAME;
}
}
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