org.lightcouch

Class CouchDbUtil

java.lang.Object

org.lightcouch.CouchDbUtil

final class CouchDbUtil
extends java.lang.Object

Provides various utility methods, for internal use.

Field Summary

Fields

Modifier and Type	Field and Description
private static java.lang.String	LINE_SEP

Constructor Summary

Constructors

Modifier	Constructor and Description
private	CouchDbUtil()

Method Summary

Modifier and Type	Method and Description
static void	assertNotEmpty(java.lang.Object object, java.lang.String prefix)
static void	assertNull(java.lang.Object object, java.lang.String prefix)
static void	close(java.io.Closeable c) Closes a resource.
static void	close(org.apache.http.HttpResponse response) Closes the response input stream.
static java.lang.String	generateUUID()
static int	getAsInt(com.google.gson.JsonObject j, java.lang.String e)
static long	getAsLong(com.google.gson.JsonObject j, java.lang.String e)
static java.lang.String	getAsString(com.google.gson.JsonObject j, java.lang.String e)
static java.io.InputStream	getStream(org.apache.http.HttpResponse response)
static <T> T	JsonToObject(com.google.gson.Gson gson, com.google.gson.JsonElement elem, java.lang.String key, java.lang.Class<T> classType)
static java.util.List<java.lang.String>	listResources(java.lang.String path) List directory contents for a resource folder.
static java.lang.String	readFile(java.lang.String path)
static java.lang.String	removeExtension(java.lang.String fileName)
static java.lang.String	streamToString(java.io.InputStream in)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

LINE_SEP

private static final java.lang.String LINE_SEP

Constructor Detail

CouchDbUtil

private CouchDbUtil()

Method Detail

assertNotEmpty

public static void assertNotEmpty(java.lang.Object object,
                                  java.lang.String prefix)
                           throws java.lang.IllegalArgumentException

Throws:

java.lang.IllegalArgumentException

assertNull

public static void assertNull(java.lang.Object object,
                              java.lang.String prefix)
                       throws java.lang.IllegalArgumentException

Throws:

java.lang.IllegalArgumentException

generateUUID

public static java.lang.String generateUUID()

JsonToObject

public static <T> T JsonToObject(com.google.gson.Gson gson,
                                 com.google.gson.JsonElement elem,
                                 java.lang.String key,
                                 java.lang.Class<T> classType)

getAsString

public static java.lang.String getAsString(com.google.gson.JsonObject j,
                                           java.lang.String e)

Returns:

A JSON element as a String, or null if not found.

getAsLong

public static long getAsLong(com.google.gson.JsonObject j,
                             java.lang.String e)

Returns:

A JSON element as long, or 0 if not found.

getAsInt

public static int getAsInt(com.google.gson.JsonObject j,
                           java.lang.String e)

Returns:

A JSON element as int, or 0 if not found.

listResources

public static java.util.List<java.lang.String> listResources(java.lang.String path)

List directory contents for a resource folder. Not recursive. This is basically a brute-force implementation. Works for regular files and also JARs.

Parameters:

clazz - Any java class that lives in the same place as the resources you want.

path - Should end with "/", but not start with one.

Returns:

Just the name of each member item, not the full paths.

readFile

public static java.lang.String readFile(java.lang.String path)

getStream

public static java.io.InputStream getStream(org.apache.http.HttpResponse response)

Returns:

InputStream of HttpResponse

removeExtension

public static java.lang.String removeExtension(java.lang.String fileName)

streamToString

public static java.lang.String streamToString(java.io.InputStream in)

close

public static void close(org.apache.http.HttpResponse response)

Closes the response input stream.

Parameters:

response - The HttpResponse

close

public static void close(java.io.Closeable c)

Closes a resource.

Parameters:

c - The Closeable resource.