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/*
* Copyright (C) 2012 The CyanogenMod Project
*
* 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
*
* 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.cyanogenmod.filemanager.model;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.List;
/**
* A class that holds information about the usage of a disk (total, used and free space).
*/
public class DiskUsage implements Serializable {
private static final long serialVersionUID = -4540446701543226294L;
private final List<DiskUsageCategory> mDiskUsageCategoryList =
new ArrayList<DiskUsageCategory>();
private final String mMountPoint;
private final long mTotal;
private final long mUsed;
private final long mFree;
/**
* Constructor of <code>DiskUsage</code>.
*
* @param mountPoint The mount point
* @param total The total amount of space
* @param used The used amount of space
* @param free The free amount of space
*/
public DiskUsage(String mountPoint, long total, long used, long free) {
super();
this.mMountPoint = mountPoint;
this.mTotal = total;
this.mUsed = used;
this.mFree = free;
}
/**
* Method that returns the mount point.
*
* @return String The mount point
*/
public String getMountPoint() {
return this.mMountPoint;
}
/**
* Method that returns the total amount of space.
*
* @return long The total amount of space
*/
public long getTotal() {
return this.mTotal;
}
/**
* Method that returns the used amount of space.
*
* @return long The used amount of space
*/
public long getUsed() {
return this.mUsed;
}
/**
* Method that returns the free amount of space.
*
* @return long The free amount of space
*/
public long getFree() {
return this.mFree;
}
/**
* Method that returns the total sum of all categories
*
* @return {@link java.lang.Long}
*/
public long getCategorySum() {
long bytes = 0;
for (DiskUsageCategory category : getUsageCategoryList()) {
bytes += category.getSizeBytes();
}
return bytes;
}
/**
* Add a usage category
*
* @param category {@link com.cyanogenmod.filemanager.model.DiskUsageCategory} not null
*
* @throws IllegalArgumentException {@link java.lang.IllegalArgumentException}
*/
public void addUsageCategory(DiskUsageCategory category) throws IllegalArgumentException {
if (category == null) {
throw new IllegalArgumentException("'category' cannot be null!");
}
mDiskUsageCategoryList.add(category);
}
public List<DiskUsageCategory> getUsageCategoryList() {
return mDiskUsageCategoryList;
}
/**
* Clears the list of usage categories
*/
public void clearUsageCategories() {
mDiskUsageCategoryList.clear();
}
/**
* {@inheritDoc}
*/
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + (int) (this.mFree ^ (this.mFree >>> 32));
result = prime * result + ((this.mMountPoint == null) ? 0 : this.mMountPoint.hashCode());
result = prime * result + (int) (this.mTotal ^ (this.mTotal >>> 32));
result = prime * result + (int) (this.mUsed ^ (this.mUsed >>> 32));
return result;
}
/**
* {@inheritDoc}
*/
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj == null) {
return false;
}
if (getClass() != obj.getClass()) {
return false;
}
DiskUsage other = (DiskUsage) obj;
if (this.mFree != other.mFree) {
return false;
}
if (this.mMountPoint == null) {
if (other.mMountPoint != null) {
return false;
}
} else if (!this.mMountPoint.equals(other.mMountPoint)) {
return false;
}
if (this.mTotal != other.mTotal) {
return false;
}
if (this.mUsed != other.mUsed) {
return false;
}
return true;
}
/**
* {@inheritDoc}
*/
@Override
public String toString() {
return "DiskUsage [mMountPoint=" + this.mMountPoint //$NON-NLS-1$
+ ", mTotal=" + this.mTotal + //$NON-NLS-1$
", mUsed=" + this.mUsed + ", mFree=" //$NON-NLS-1$ //$NON-NLS-2$
+ this.mFree + "]"; //$NON-NLS-1$
}
}
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