com.emc.esu.api.ObjectPath Maven / Gradle / Ivy
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/*
* Copyright 2013 EMC Corporation. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License").
* You may not use this file except in compliance with the License.
* A copy of the License is located at
*
* http://www.apache.org/licenses/LICENSE-2.0.txt
*
* or in the "license" file accompanying this file. This file 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.emc.esu.api;
/**
* Represents an object that is identified by its path in the
* filesystem namespace. If the object path ends in a "/", it
* is considered a directory object. If it does not, it is a
* regular object.
*/
public class ObjectPath implements Identifier {
/**
* Stores the string representation of the identifier
*/
private String path;
/**
* Constructs a new object identifier
* @param path the object ID as a string
*/
public ObjectPath( String path ) {
this.path = path;
}
/**
* Returns the identifier as a string
* @return the identifier as a string
*/
public String toString() {
return path;
}
/**
* Returns true if the object IDs are equal.
*/
public boolean equals( Object obj ) {
if( !(obj instanceof ObjectPath) ) {
return false;
}
return path.equals( ((ObjectPath)obj).toString() );
}
/**
* Gets the name of the object (the last path component)
*/
public String getName() {
if( isDirectory() ) {
if( path.equals( "/" ) ) {
return "";
} else {
int slash = path.substring(0, path.length()-1 ).lastIndexOf( '/' );
return path.substring( slash+1, path.length()-1 );
}
} else {
int slash = path.lastIndexOf( '/' );
return path.substring( slash+1, path.length() );
}
}
/**
* Returns a hash code for this object id.
*/
public int hashCode() {
return path.hashCode();
}
/**
* Returns true if this path represents a directory object.
*/
public boolean isDirectory() {
return path.endsWith( "/" );
}
}