com.nostra13.universalimageloader.cache.disc.naming.FileNameGenerator Java Examples

/**
 * Creates default implementation of {@link DiskCache} depends on incoming parameters
 */
public static DiskCache createDiskCache(Context context, FileNameGenerator diskCacheFileNameGenerator,
		long diskCacheSize, int diskCacheFileCount) {
	File reserveCacheDir = createReserveDiskCacheDir(context);
	if (diskCacheSize > 0 || diskCacheFileCount > 0) {
		File individualCacheDir = StorageUtils.getIndividualCacheDirectory(context);
		try {
			return new LruDiscCache(individualCacheDir, reserveCacheDir, diskCacheFileNameGenerator, diskCacheSize,
					diskCacheFileCount);
		} catch (IOException e) {
			L.e(e);
			// continue and create unlimited cache
		}
	}
	File cacheDir = StorageUtils.getCacheDirectory(context);
	return new UnlimitedDiscCache(cacheDir, reserveCacheDir, diskCacheFileNameGenerator);
}
 

/**
 * 默认图片 本地路径缓存
 * Creates default implementation of {@link DiskCache} depends on incoming parameters
 */
public static DiskCache createDiskCache(Context context, FileNameGenerator diskCacheFileNameGenerator,
		long diskCacheSize, int diskCacheFileCount) {
	//创建备用缓存文件
	File reserveCacheDir = createReserveDiskCacheDir(context);
	if (diskCacheSize > 0 || diskCacheFileCount > 0) {
		File individualCacheDir = StorageUtils.getIndividualCacheDirectory(context);
		try {
			//创建本地文件系统缓存器
			return new LruDiskCache(individualCacheDir, reserveCacheDir, diskCacheFileNameGenerator, diskCacheSize,
					diskCacheFileCount);
		} catch (IOException e) {
			L.e(e);
			// continue and create unlimited cache
		}
	}
	//创建无限制的文件缓存器
	File cacheDir = StorageUtils.getCacheDirectory(context);
	return new UnlimitedDiskCache(cacheDir, reserveCacheDir, diskCacheFileNameGenerator);
}
 

public BaseDiscCache(File file, File file1, FileNameGenerator filenamegenerator)
{
    bufferSize = 32768;
    compressFormat = DEFAULT_COMPRESS_FORMAT;
    compressQuality = 100;
    if (file == null)
    {
        throw new IllegalArgumentException("cacheDir argument must be not null");
    }
    if (filenamegenerator == null)
    {
        throw new IllegalArgumentException("fileNameGenerator argument must be not null");
    } else
    {
        cacheDir = file;
        reserveCacheDir = file1;
        fileNameGenerator = filenamegenerator;
        return;
    }
}
 

/**
 * Creates default implementation of {@link DiskCache} depends on incoming parameters
 */
public static DiskCache createDiskCache(Context context, FileNameGenerator diskCacheFileNameGenerator,
		long diskCacheSize, int diskCacheFileCount) {
	File reserveCacheDir = createReserveDiskCacheDir(context);
	if (diskCacheSize > 0 || diskCacheFileCount > 0) {
		File individualCacheDir = StorageUtils.getIndividualCacheDirectory(context);
		try {
			return new LruDiskCache(individualCacheDir, reserveCacheDir, diskCacheFileNameGenerator, diskCacheSize,
					diskCacheFileCount);
		} catch (IOException e) {
			L.e(e);
			// continue and create unlimited cache
		}
	}
	File cacheDir = StorageUtils.getCacheDirectory(context);
	return new UnlimitedDiskCache(cacheDir, reserveCacheDir, diskCacheFileNameGenerator);
}
 

/**
 * Creates default implementation of {@link DiskCache} depends on incoming parameters
 */
public static DiskCache createDiskCache(Context context, FileNameGenerator diskCacheFileNameGenerator,
		long diskCacheSize, int diskCacheFileCount) {
	File reserveCacheDir = createReserveDiskCacheDir(context);
	if (diskCacheSize > 0 || diskCacheFileCount > 0) {
		File individualCacheDir = StorageUtils.getIndividualCacheDirectory(context);
		try {
			return new LruDiscCache(individualCacheDir, reserveCacheDir, diskCacheFileNameGenerator, diskCacheSize,
					diskCacheFileCount);
		} catch (IOException e) {
			L.e(e);
			// continue and create unlimited cache
		}
	}
	File cacheDir = StorageUtils.getCacheDirectory(context);
	return new UnlimitedDiscCache(cacheDir, reserveCacheDir, diskCacheFileNameGenerator);
}
 

public LruDiscCache(File cacheDir, File reserveCacheDir, FileNameGenerator fileNameGenerator, long cacheMaxSize, int cacheMaxFileCount) throws IOException {
    this.bufferSize = 32768;
    this.compressFormat = DEFAULT_COMPRESS_FORMAT;
    this.compressQuality = 100;
    if (cacheDir == null) {
        throw new IllegalArgumentException("cacheDir argument must be not null");
    } else if (cacheMaxSize < 0) {
        throw new IllegalArgumentException("cacheMaxSize argument must be positive number");
    } else if (cacheMaxFileCount < 0) {
        throw new IllegalArgumentException("cacheMaxFileCount argument must be positive number");
    } else if (fileNameGenerator == null) {
        throw new IllegalArgumentException("fileNameGenerator argument must be not null");
    } else {
        if (cacheMaxSize == 0) {
            cacheMaxSize = Long.MAX_VALUE;
        }
        if (cacheMaxFileCount == 0) {
            cacheMaxFileCount = Integer.MAX_VALUE;
        }
        this.reserveCacheDir = reserveCacheDir;
        this.fileNameGenerator = fileNameGenerator;
        initCache(cacheDir, reserveCacheDir, cacheMaxSize, cacheMaxFileCount);
    }
}
 

/**
 * Creates default implementation of {@link DiskCache} depends on incoming parameters
 */
public static DiskCache createDiskCache(Context context, FileNameGenerator diskCacheFileNameGenerator,
                                        long diskCacheSize, int diskCacheFileCount) {
    File reserveCacheDir = createReserveDiskCacheDir(context);
    if (diskCacheSize > 0 || diskCacheFileCount > 0) {
        File individualCacheDir = StorageUtils.getIndividualCacheDirectory(context);
        try {
            return new LruDiskCache(individualCacheDir, reserveCacheDir, diskCacheFileNameGenerator, diskCacheSize,
                    diskCacheFileCount);
        } catch (IOException e) {
            L.e(e);
            // continue and create unlimited cache
        }
    }
    File cacheDir = StorageUtils.getCacheDirectory(context);
    return new UnlimitedDiskCache(cacheDir, reserveCacheDir, diskCacheFileNameGenerator);
}
 

/**
 * Creates default implementation of {@link DiskCache} depends on incoming parameters
 */
public static DiskCache createDiskCache(Context context, FileNameGenerator diskCacheFileNameGenerator,
		long diskCacheSize, int diskCacheFileCount) {
	File reserveCacheDir = createReserveDiskCacheDir(context);
	if (diskCacheSize > 0 || diskCacheFileCount > 0) {
		File individualCacheDir = StorageUtils.getIndividualCacheDirectory(context);
		try {
			return new LruDiskCache(individualCacheDir, reserveCacheDir, diskCacheFileNameGenerator, diskCacheSize,
					diskCacheFileCount);
		} catch (IOException e) {
			L.e(e);
			// continue and create unlimited cache
		}
	}
	File cacheDir = StorageUtils.getCacheDirectory(context);
	return new UnlimitedDiskCache(cacheDir, reserveCacheDir, diskCacheFileNameGenerator);
}
 

/**
 * 构造方法   传入缓存文件夹 以及备用缓存文件夹，缓存文件命名方式
 * @param cacheDir          Directory for file caching
 * @param reserveCacheDir   null-ok; Reserve directory for file caching. It's used when the primary directory isn't available.
 * @param fileNameGenerator {@linkplain com.nostra13.universalimageloader.cache.disc.naming.FileNameGenerator
 *                          Name generator} for cached files
 */
public BaseDiskCache(File cacheDir, File reserveCacheDir, FileNameGenerator fileNameGenerator) {
	if (cacheDir == null) {
		throw new IllegalArgumentException("cacheDir" + ERROR_ARG_NULL);
	}
	if (fileNameGenerator == null) {
		throw new IllegalArgumentException("fileNameGenerator" + ERROR_ARG_NULL);
	}

	this.cacheDir = cacheDir;
	this.reserveCacheDir = reserveCacheDir;
	this.fileNameGenerator = fileNameGenerator;
}
 

/**
 * 设置本地文件缓存器中 缓存文件名生成器
 * Sets name generator for files cached in disk cache.<br />
 * Default value -
 * {@link com.nostra13.universalimageloader.core.DefaultConfigurationFactory#createFileNameGenerator()
 * DefaultConfigurationFactory.createFileNameGenerator()}
 */
public Builder diskCacheFileNameGenerator(FileNameGenerator fileNameGenerator) {
	if (diskCache != null) {
		L.w(WARNING_OVERLAP_DISK_CACHE_NAME_GENERATOR);
	}

	this.diskCacheFileNameGenerator = fileNameGenerator;
	return this;
}
 

/**
 * LruDiskCache 图片本地文件缓存器初始化
 * @param cacheDir          Directory for file caching
 * @param reserveCacheDir   null-ok; Reserve directory for file caching. It's used when the primary directory isn't available.
 * @param fileNameGenerator {@linkplain com.nostra13.universalimageloader.cache.disc.naming.FileNameGenerator
 *                          Name generator} for cached files. Generated names must match the regex
 *                          <strong>[a-z0-9_-]{1,64}</strong>
 * @param cacheMaxSize      Max cache size in bytes. <b>0</b> means cache size is unlimited.
 * @param cacheMaxFileCount Max file count in cache. <b>0</b> means file count is unlimited.
 * @throws IOException if cache can't be initialized (e.g. "No space left on device")
 */
public LruDiskCache(File cacheDir, File reserveCacheDir, FileNameGenerator fileNameGenerator, long cacheMaxSize,
		int cacheMaxFileCount) throws IOException {
	if (cacheDir == null) {
		throw new IllegalArgumentException("cacheDir" + ERROR_ARG_NULL);
	}
	if (cacheMaxSize < 0) {
		throw new IllegalArgumentException("cacheMaxSize" + ERROR_ARG_NEGATIVE);
	}
	if (cacheMaxFileCount < 0) {
		throw new IllegalArgumentException("cacheMaxFileCount" + ERROR_ARG_NEGATIVE);
	}
	if (fileNameGenerator == null) {
		throw new IllegalArgumentException("fileNameGenerator" + ERROR_ARG_NULL);
	}
       //如果传入最大缓存大小为0 ,那么设置Long的最大值
	if (cacheMaxSize == 0) {
		cacheMaxSize = Long.MAX_VALUE;
	}
	//如果传入最大缓存文件数量为0 ，那么设置Integer的最大值
	if (cacheMaxFileCount == 0) {
		cacheMaxFileCount = Integer.MAX_VALUE;
	}

	this.reserveCacheDir = reserveCacheDir;
	this.fileNameGenerator = fileNameGenerator;
	//初始化缓存
	initCache(cacheDir, reserveCacheDir, cacheMaxSize, cacheMaxFileCount);
}
 

/**
 * @param cacheDir          Directory for file caching
 * @param reserveCacheDir   null-ok; Reserve directory for file caching. It's used when the primary directory isn't available.
 * @param fileNameGenerator {@linkplain com.nostra13.universalimageloader.cache.disc.naming.FileNameGenerator
 *                          Name generator} for cached files. Generated names must match the regex
 *                          <strong>[a-z0-9_-]{1,64}</strong>
 * @param cacheMaxSize      Max cache size in bytes. <b>0</b> means cache size is unlimited.
 * @param cacheMaxFileCount Max file count in cache. <b>0</b> means file count is unlimited.
 * @throws java.io.IOException if cache can't be initialized (e.g. "No space left on device")
 */
public LruDiscCache(File cacheDir, File reserveCacheDir, FileNameGenerator fileNameGenerator, long cacheMaxSize,
		int cacheMaxFileCount) throws IOException {
	if (cacheDir == null) {
		throw new IllegalArgumentException("cacheDir" + ERROR_ARG_NULL);
	}
	if (cacheMaxSize < 0) {
		throw new IllegalArgumentException("cacheMaxSize" + ERROR_ARG_NEGATIVE);
	}
	if (cacheMaxFileCount < 0) {
		throw new IllegalArgumentException("cacheMaxFileCount" + ERROR_ARG_NEGATIVE);
	}
	if (fileNameGenerator == null) {
		throw new IllegalArgumentException("fileNameGenerator" + ERROR_ARG_NULL);
	}

	if (cacheMaxSize == 0) {
		cacheMaxSize = Long.MAX_VALUE;
	}
	if (cacheMaxFileCount == 0) {
		cacheMaxFileCount = Integer.MAX_VALUE;
	}

	this.reserveCacheDir = reserveCacheDir;
	this.fileNameGenerator = fileNameGenerator;
	initCache(cacheDir, reserveCacheDir, cacheMaxSize, cacheMaxFileCount);
}
 

public Builder diskCacheFileNameGenerator(FileNameGenerator fileNameGenerator) {
    if (this.diskCache != null) {
        L.w(WARNING_OVERLAP_DISK_CACHE_NAME_GENERATOR, new Object[0]);
    }
    this.diskCacheFileNameGenerator = fileNameGenerator;
    return this;
}
 

/**
 * @param cacheDir          Directory for file caching
 * @param reserveCacheDir   null-ok; Reserve directory for file caching. It's used when the primary directory isn't available.
 * @param fileNameGenerator {@linkplain com.nostra13.universalimageloader.cache.disc.naming.FileNameGenerator
 *                          Name generator} for cached files
 */
public BaseDiskCache(File cacheDir, File reserveCacheDir, FileNameGenerator fileNameGenerator) {
    if (cacheDir == null) {
        throw new IllegalArgumentException("cacheDir" + ERROR_ARG_NULL);
    }
    if (fileNameGenerator == null) {
        throw new IllegalArgumentException("fileNameGenerator" + ERROR_ARG_NULL);
    }

    this.cacheDir = cacheDir;
    this.reserveCacheDir = reserveCacheDir;
    this.fileNameGenerator = fileNameGenerator;
}
 

public BaseDiscCache(File cacheDir, File reserveCacheDir, FileNameGenerator fileNameGenerator) {
    this.bufferSize = 32768;
    this.compressFormat = DEFAULT_COMPRESS_FORMAT;
    this.compressQuality = 100;
    if (cacheDir == null) {
        throw new IllegalArgumentException("cacheDir argument must be not null");
    } else if (fileNameGenerator == null) {
        throw new IllegalArgumentException("fileNameGenerator argument must be not null");
    } else {
        this.cacheDir = cacheDir;
        this.reserveCacheDir = reserveCacheDir;
        this.fileNameGenerator = fileNameGenerator;
    }
}
 

/**
 * Sets name generator for files cached in disk cache.<br />
 * Default value -
 * {@link com.nostra13.universalimageloader.core.DefaultConfigurationFactory#createFileNameGenerator()
 * DefaultConfigurationFactory.createFileNameGenerator()}
 */
public Builder diskCacheFileNameGenerator(FileNameGenerator fileNameGenerator) {
	if (diskCache != null) {
		L.w(WARNING_OVERLAP_DISK_CACHE_NAME_GENERATOR);
	}

	this.diskCacheFileNameGenerator = fileNameGenerator;
	return this;
}
 

/**
 * Sets name generator for files cached in disk cache.<br />
 * Default value -
 * {@link com.nostra13.universalimageloader.core.DefaultConfigurationFactory#createFileNameGenerator()
 * DefaultConfigurationFactory.createFileNameGenerator()}
 */
public Builder diskCacheFileNameGenerator(FileNameGenerator fileNameGenerator) {
    if (diskCache != null) {
        L.w(WARNING_OVERLAP_DISK_CACHE_NAME_GENERATOR);
    }

    this.diskCacheFileNameGenerator = fileNameGenerator;
    return this;
}
 

/**
 * @param cacheDir          Directory for file caching
 * @param reserveCacheDir   null-ok; Reserve directory for file caching. It's used when the primary directory isn't available.
 * @param fileNameGenerator {@linkplain com.nostra13.universalimageloader.cache.disc.naming.FileNameGenerator
 *                          Name generator} for cached files. Generated names must match the regex
 *                          <strong>[a-z0-9_-]{1,64}</strong>
 * @param cacheMaxSize      Max cache size in bytes. <b>0</b> means cache size is unlimited.
 * @param cacheMaxFileCount Max file count in cache. <b>0</b> means file count is unlimited.
 * @throws IOException if cache can't be initialized (e.g. "No space left on device")
 */
public LruDiscCache(File cacheDir, File reserveCacheDir, FileNameGenerator fileNameGenerator, long cacheMaxSize,
		int cacheMaxFileCount) throws IOException {
	if (cacheDir == null) {
		throw new IllegalArgumentException("cacheDir" + ERROR_ARG_NULL);
	}
	if (cacheMaxSize < 0) {
		throw new IllegalArgumentException("cacheMaxSize" + ERROR_ARG_NEGATIVE);
	}
	if (cacheMaxFileCount < 0) {
		throw new IllegalArgumentException("cacheMaxFileCount" + ERROR_ARG_NEGATIVE);
	}
	if (fileNameGenerator == null) {
		throw new IllegalArgumentException("fileNameGenerator" + ERROR_ARG_NULL);
	}

	if (cacheMaxSize == 0) {
		cacheMaxSize = Long.MAX_VALUE;
	}
	if (cacheMaxFileCount == 0) {
		cacheMaxFileCount = Integer.MAX_VALUE;
	}

	this.reserveCacheDir = reserveCacheDir;
	this.fileNameGenerator = fileNameGenerator;
	initCache(cacheDir, reserveCacheDir, cacheMaxSize, cacheMaxFileCount);
}
 

public static DiskCache createDiskCache(Context context, FileNameGenerator diskCacheFileNameGenerator, long diskCacheSize, int diskCacheFileCount) {
    File reserveCacheDir = createReserveDiskCacheDir(context);
    if (diskCacheSize > 0 || diskCacheFileCount > 0) {
        try {
            return new LruDiscCache(StorageUtils.getIndividualCacheDirectory(context), reserveCacheDir, diskCacheFileNameGenerator, diskCacheSize, diskCacheFileCount);
        } catch (IOException e) {
            L.e(e);
        }
    }
    return new UnlimitedDiscCache(StorageUtils.getCacheDirectory(context), reserveCacheDir, diskCacheFileNameGenerator);
}
 

public static DiskCache createDiskCache(Context context, FileNameGenerator filenamegenerator, long l, int i)
{
    File file = a(context);
    if (l > 0L || i > 0)
    {
        LruDiscCache lrudisccache = new LruDiscCache(StorageUtils.getIndividualCacheDirectory(context), filenamegenerator, l, i);
        lrudisccache.setReserveCacheDir(file);
        return lrudisccache;
    } else
    {
        return new UnlimitedDiscCache(StorageUtils.getCacheDirectory(context), file, filenamegenerator);
    }
}
 

/**
 * @param cacheDir          Directory for file caching
 * @param reserveCacheDir   null-ok; Reserve directory for file caching. It's used when the primary directory isn't available.
 * @param fileNameGenerator {@linkplain com.nostra13.universalimageloader.cache.disc.naming.FileNameGenerator
 *                          Name generator} for cached files
 */
public BaseDiskCache(File cacheDir, File reserveCacheDir, FileNameGenerator fileNameGenerator) {
	if (cacheDir == null) {
		throw new IllegalArgumentException("cacheDir" + ERROR_ARG_NULL);
	}
	if (fileNameGenerator == null) {
		throw new IllegalArgumentException("fileNameGenerator" + ERROR_ARG_NULL);
	}

	this.cacheDir = cacheDir;
	this.reserveCacheDir = reserveCacheDir;
	this.fileNameGenerator = fileNameGenerator;
}
 

public u diskCacheFileNameGenerator(FileNameGenerator filenamegenerator)
{
    if (w != null)
    {
        L.w("diskCache() and diskCacheFileNameGenerator() calls overlap each other", new Object[0]);
    }
    x = filenamegenerator;
    return this;
}
 

/**
 * @param cacheDir          Directory for file caching
 * @param reserveCacheDir   null-ok; Reserve directory for file caching. It's used when the primary directory isn't available.
 * @param fileNameGenerator {@linkplain com.nostra13.universalimageloader.cache.disc.naming.FileNameGenerator
 *                          Name generator} for cached files. Generated names must match the regex
 *                          <strong>[a-z0-9_-]{1,64}</strong>
 * @param cacheMaxSize      Max cache size in bytes. <b>0</b> means cache size is unlimited.
 * @param cacheMaxFileCount Max file count in cache. <b>0</b> means file count is unlimited.
 * @throws IOException if cache can't be initialized (e.g. "No space left on device")
 */
public LruDiskCache(File cacheDir, File reserveCacheDir, FileNameGenerator fileNameGenerator, long cacheMaxSize,
		int cacheMaxFileCount) throws IOException {
	if (cacheDir == null) {
		throw new IllegalArgumentException("cacheDir" + ERROR_ARG_NULL);
	}
	if (cacheMaxSize < 0) {
		throw new IllegalArgumentException("cacheMaxSize" + ERROR_ARG_NEGATIVE);
	}
	if (cacheMaxFileCount < 0) {
		throw new IllegalArgumentException("cacheMaxFileCount" + ERROR_ARG_NEGATIVE);
	}
	if (fileNameGenerator == null) {
		throw new IllegalArgumentException("fileNameGenerator" + ERROR_ARG_NULL);
	}

	if (cacheMaxSize == 0) {
		cacheMaxSize = Long.MAX_VALUE;
	}
	if (cacheMaxFileCount == 0) {
		cacheMaxFileCount = Integer.MAX_VALUE;
	}

	this.reserveCacheDir = reserveCacheDir;
	this.fileNameGenerator = fileNameGenerator;
	initCache(cacheDir, reserveCacheDir, cacheMaxSize, cacheMaxFileCount);
}
 

public LruDiscCache(File file, FileNameGenerator filenamegenerator, long l, int i)
{
    bufferSize = 32768;
    compressFormat = DEFAULT_COMPRESS_FORMAT;
    compressQuality = 100;
    if (file == null)
    {
        throw new IllegalArgumentException("cacheDir argument must be not null");
    }
    if (l < 0L)
    {
        throw new IllegalArgumentException("cacheMaxSize argument must be positive number");
    }
    if (i < 0)
    {
        throw new IllegalArgumentException("cacheMaxFileCount argument must be positive number");
    }
    if (filenamegenerator == null)
    {
        throw new IllegalArgumentException("fileNameGenerator argument must be not null");
    }
    long l1;
    int j;
    if (l == 0L)
    {
        l1 = 0x7fffffffffffffffL;
    } else
    {
        l1 = l;
    }
    if (i == 0)
    {
        j = 0x7fffffff;
    } else
    {
        j = i;
    }
    fileNameGenerator = filenamegenerator;
    a(file, c, l1, j);
}
 

/**
 * Sets name generator for files cached in disk cache.<br />
 * Default value -
 * {@link com.nostra13.universalimageloader.core.DefaultConfigurationFactory#createFileNameGenerator()
 * DefaultConfigurationFactory.createFileNameGenerator()}
 */
public Builder diskCacheFileNameGenerator(FileNameGenerator fileNameGenerator) {
	if (diskCache != null) {
		L.w(WARNING_OVERLAP_DISK_CACHE_NAME_GENERATOR);
	}

	this.diskCacheFileNameGenerator = fileNameGenerator;
	return this;
}
 

/**
 * @param cacheDir          Directory for file caching
 * @param reserveCacheDir   null-ok; Reserve directory for file caching. It's used when the primary directory isn't available.
 * @param fileNameGenerator {@linkplain com.nostra13.universalimageloader.cache.disc.naming.FileNameGenerator
 *                          Name generator} for cached files
 */
public BaseDiskCache(File cacheDir, File reserveCacheDir, FileNameGenerator fileNameGenerator) {
	if (cacheDir == null) {
		throw new IllegalArgumentException("cacheDir" + ERROR_ARG_NULL);
	}
	if (fileNameGenerator == null) {
		throw new IllegalArgumentException("fileNameGenerator" + ERROR_ARG_NULL);
	}

	this.cacheDir = cacheDir;
	this.reserveCacheDir = reserveCacheDir;
	this.fileNameGenerator = fileNameGenerator;
}
 

/**
 * @param cacheDir          Directory for file caching
 * @param reserveCacheDir   null-ok; Reserve directory for file caching. It's used when the primary directory isn't available.
 * @param fileNameGenerator {@linkplain com.nostra13.universalimageloader.cache.disc.naming.FileNameGenerator
 *                          Name generator} for cached files. Generated names must match the regex
 *                          <strong>[a-z0-9_-]{1,64}</strong>
 * @param cacheMaxSize      Max cache size in bytes. <b>0</b> means cache size is unlimited.
 * @param cacheMaxFileCount Max file count in cache. <b>0</b> means file count is unlimited.
 * @throws IOException if cache can't be initialized (e.g. "No space left on device")
 */
public LruDiskCache(File cacheDir, File reserveCacheDir, FileNameGenerator fileNameGenerator, long cacheMaxSize,
                    int cacheMaxFileCount) throws IOException {
    if (cacheDir == null) {
        throw new IllegalArgumentException("cacheDir" + ERROR_ARG_NULL);
    }
    if (cacheMaxSize < 0) {
        throw new IllegalArgumentException("cacheMaxSize" + ERROR_ARG_NEGATIVE);
    }
    if (cacheMaxFileCount < 0) {
        throw new IllegalArgumentException("cacheMaxFileCount" + ERROR_ARG_NEGATIVE);
    }
    if (fileNameGenerator == null) {
        throw new IllegalArgumentException("fileNameGenerator" + ERROR_ARG_NULL);
    }

    if (cacheMaxSize == 0) {
        cacheMaxSize = Long.MAX_VALUE;
    }
    if (cacheMaxFileCount == 0) {
        cacheMaxFileCount = Integer.MAX_VALUE;
    }

    this.reserveCacheDir = reserveCacheDir;
    this.fileNameGenerator = fileNameGenerator;
    initCache(cacheDir, reserveCacheDir, cacheMaxSize, cacheMaxFileCount);
}
 

/**
 * @param cacheDir          Directory for file caching
 * @param reserveCacheDir   null-ok; Reserve directory for file caching. It's used when the primary directory isn't available.
 * @param fileNameGenerator {@linkplain com.nostra13.universalimageloader.cache.disc.naming.FileNameGenerator
 *                          Name generator} for cached files. Generated names must match the regex
 *                          <strong>[a-z0-9_-]{1,64}</strong>
 * @param cacheMaxSize      Max cache size in bytes. <b>0</b> means cache size is unlimited.
 * @param cacheMaxFileCount Max file count in cache. <b>0</b> means file count is unlimited.
 * @throws IOException if cache can't be initialized (e.g. "No space left on device")
 */
public LruDiskCache(File cacheDir, File reserveCacheDir, FileNameGenerator fileNameGenerator, long cacheMaxSize,
		int cacheMaxFileCount) throws IOException {
	if (cacheDir == null) {
		throw new IllegalArgumentException("cacheDir" + ERROR_ARG_NULL);
	}
	if (cacheMaxSize < 0) {
		throw new IllegalArgumentException("cacheMaxSize" + ERROR_ARG_NEGATIVE);
	}
	if (cacheMaxFileCount < 0) {
		throw new IllegalArgumentException("cacheMaxFileCount" + ERROR_ARG_NEGATIVE);
	}
	if (fileNameGenerator == null) {
		throw new IllegalArgumentException("fileNameGenerator" + ERROR_ARG_NULL);
	}

	if (cacheMaxSize == 0) {
		cacheMaxSize = Long.MAX_VALUE;
	}
	if (cacheMaxFileCount == 0) {
		cacheMaxFileCount = Integer.MAX_VALUE;
	}

	this.reserveCacheDir = reserveCacheDir;
	this.fileNameGenerator = fileNameGenerator;
	initCache(cacheDir, reserveCacheDir, cacheMaxSize, cacheMaxFileCount);
}
 

/**
 * Sets name generator for files cached in disk cache.<br />
 * Default value -
 * {@link com.nostra13.universalimageloader.core.DefaultConfigurationFactory#createFileNameGenerator()
 * DefaultConfigurationFactory.createFileNameGenerator()}
 */
public Builder diskCacheFileNameGenerator(FileNameGenerator fileNameGenerator) {
	if (diskCache != null) {
		L.w(WARNING_OVERLAP_DISK_CACHE_NAME_GENERATOR);
	}

	this.diskCacheFileNameGenerator = fileNameGenerator;
	return this;
}
 

/**
 * Sets name generator for files cached in disk cache.<br />
 * Default value -
 * {@link com.nostra13.universalimageloader.core.DefaultConfigurationFactory#createFileNameGenerator()
 * DefaultConfigurationFactory.createFileNameGenerator()}
 */
public Builder diskCacheFileNameGenerator(FileNameGenerator fileNameGenerator) {
	if (diskCache != null) {
		L.w(WARNING_OVERLAP_DISK_CACHE_NAME_GENERATOR);
	}

	this.diskCacheFileNameGenerator = fileNameGenerator;
	return this;
}