com.aliyun.odps.Resource Maven / Gradle / Ivy
/*
* 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 com.aliyun.odps;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;
import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlRootElement;
import javax.xml.bind.annotation.adapters.XmlJavaTypeAdapter;
import com.aliyun.odps.Resources.ResourceHeaders;
import com.aliyun.odps.commons.transport.Headers;
import com.aliyun.odps.commons.transport.Response;
import com.aliyun.odps.commons.util.DateUtils;
import com.aliyun.odps.rest.JAXBUtils;
import com.aliyun.odps.rest.ResourceBuilder;
import com.aliyun.odps.rest.RestClient;
/**
* Resource表示ODPS中的资源
*
* @author [email protected]
*/
public class Resource extends LazyLoad {
/**
* 表示ODPS中资源的类型
*
* @author [email protected]
*/
public enum Type {
/**
* 文件类型资源
*/
FILE,
/**
* JAR类型资源
*/
JAR,
/**
* PY类型资源
*/
PY,
/**
* ARCHIVE类型资源。ODPS通过资源名称中的后缀识别压缩类型，支持的压缩文件类型包括：.zip/.tgz/.tar.gz/.tar/.jar。
*/
ARCHIVE,
/**
* 表类型资源
*/
TABLE,
VOLUMEFILE,
VOLUMEARCHIVE,
/**
* 用户设置的或系统暂不支持的资源类型
*/
UNKOWN
}
/**
* Resource model
*/
@XmlRootElement(name = "Resource")
@XmlAccessorType(XmlAccessType.FIELD)
static class ResourceModel {
@XmlElement(name = "Name")
String name;
@XmlElement(name = "Owner")
String owner;
@XmlElement(name = "Comment")
String comment;
@XmlElement(name = "ResourceType")
String type;
@XmlElement(name = "CreationTime")
@XmlJavaTypeAdapter(JAXBUtils.DateBinding.class)
Date createdTime;
@XmlElement(name = "LastModifiedTime")
@XmlJavaTypeAdapter(JAXBUtils.DateBinding.class)
Date lastModifiedTime;
@XmlElement(name = "LastUpdator")
String lastUpdator;
@XmlElement(name = "ResourceSize")
Long size;
@XmlElement(name = "TableName")
String sourceTableName;
String contentMD5;
boolean isTempResource;
String volumePath;
}
ResourceModel model;
String project;
RestClient client;
Odps odps;
/**
* 创建Resource类的对象
*/
public Resource() {
model = new ResourceModel();
}
Resource(ResourceModel model, String project, Odps odps) {
this.model = model;
this.project = project;
this.odps = odps;
this.client = odps.getRestClient();
}
static Resource createResource(Type type) {
Resource resource;
switch (type) {
case ARCHIVE:
resource = new ArchiveResource();
break;
case FILE:
resource = new FileResource();
break;
case JAR:
resource = new JarResource();
break;
case PY:
resource = new PyResource();
break;
case TABLE:
resource = new TableResource();
break;
case VOLUMEFILE:
resource = new VolumeFileResource();
break;
case VOLUMEARCHIVE:
resource = new VolumeArchiveResource();
break;
case UNKOWN:
resource = new Resource();
break;
default:
resource = new Resource();
}
return resource;
}
static Resource getResource(ResourceModel model, String project, Odps odps) {
if (model.type == null) {
Resource resource = new Resource(model, project, odps);
try {
resource.reload();
model = resource.model;
} catch (OdpsException e) {
return resource;
}
}
Type type = Type.valueOf(model.type.toUpperCase());
Resource resource = createResource(type);
resource.model = model;
resource.project = project;
resource.odps = odps;
resource.client = odps.getRestClient();
return resource;
}
/**
* 获得资源名称
*
* @return 资源名称
*/
public String getName() {
if (model.name == null && client != null) {
lazyLoad();
}
return model.name;
}
/**
* 设置资源名称
*
* @param name
* 资源名称
*/
public void setName(String name) {
model.name = name;
}
/**
* 获取资源注释信息
*
* @return 注释信息
*/
public String getComment() {
if (model.comment == null && client != null) {
lazyLoad();
}
return model.comment;
}
/**
* 设置资源注释信息
*
* @param comment
* 注释信息
*/
public void setComment(String comment) {
model.comment = comment;
}
/**
* 获取资源所属用户
*
* @return 用户名
*/
public String getOwner() {
if (model.owner == null && client != null) {
lazyLoad();
}
return model.owner;
}
/**
* 获取资源类型
*
* @return 资源类型
*/
public Type getType() {
if (model.type == null && client != null) {
lazyLoad();
}
if (model.type == null) {
return Type.UNKOWN;
}
try {
return Type.valueOf(model.type.toUpperCase());
} catch (IllegalArgumentException e) {
return Type.UNKOWN;
}
}
/**
* 获取资源创建时间
*
* @return 创建时间
*/
public Date getCreatedTime() {
if (model.createdTime == null && client != null) {
lazyLoad();
}
return model.createdTime;
}
/**
* 获取资源最后修改时间
*
* @return 最后修改时间
*/
public Date getLastModifiedTime() {
if (model.lastModifiedTime == null && client != null) {
lazyLoad();
}
return model.lastModifiedTime;
}
/**
* 获得资源最后更新者
*
* @return 资源最后更新者
*/
public String getLastUpdator() {
if (model.lastUpdator == null && client != null) {
lazyLoad();
}
return model.lastUpdator;
}
/**
* 获得资源大小
*
* 注意: 表 和 volumn 返回 null
* @return 资源大小
*/
public Long getSize() {
if (model.size == null && client != null) {
lazyLoad();
}
return model.size;
}
/**
* 获取资源所在{@link Project}名称
*
* @return Project名称
*/
public String getProject() {
return project;
}
@Override
public void reload() throws OdpsException {
String resource = ResourceBuilder.buildResourceResource(project, model.name);
HashMap params = new HashMap();
params.put("meta", null);
Response rp = client.request(resource, "GET", params, null, null);
Map headers = rp.getHeaders();
model.owner = headers.get(ResourceHeaders.X_ODPS_OWNER);
model.type = headers.get(ResourceHeaders.X_ODPS_RESOURCE_TYPE);
model.comment = headers.get(ResourceHeaders.X_ODPS_COMMENT);
model.lastUpdator = headers.get(ResourceHeaders.X_ODPS_RESOURCE_LAST_UPDATOR);
String sizeStr = headers.get(ResourceHeaders.X_ODPS_RESOURCE_SIZE);
try {
model.size = (sizeStr == null ? null : Long.parseLong(sizeStr));
} catch (NumberFormatException e) {
throw new OdpsException("Invalid resource size format" + sizeStr, e);
}
try {
model.createdTime = DateUtils.parseRfc822Date(headers
.get("x-odps-creation-time"));
model.lastModifiedTime = DateUtils.parseRfc822Date(headers
.get("Last-Modified"));
} catch (Exception e) {
throw new OdpsException("Invalid date format", e);
}
model.sourceTableName = headers
.get(ResourceHeaders.X_ODPS_COPY_TABLE_SOURCE);
model.volumePath = headers.get(ResourceHeaders.X_ODPS_COPY_FILE_SOURCE);
model.contentMD5 = headers.get(Headers.CONTENT_MD5);
setLoaded(true);
}
/**
* 更新 资源的 owner
* 需要是 project owner
*
* @param newOwner
* @throws OdpsException
*/
public void updateOwner(String newOwner) throws OdpsException {
String method = "PUT";
String resource = ResourceBuilder.buildResourceResource(project, model.name);
HashMap params = new HashMap();
params.put("updateowner", null);
HashMap headers = new HashMap();
headers.put(ResourceHeaders.X_ODPS_OWNER, newOwner);
client.request(resource, method, params, headers, null);
model.owner = newOwner;
}
}
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