public static InputStream gunzip(final InputStream inputStream) throws IOException {
Assert.notNull(inputStream, "inputStream");
GZIPInputStream gzipInputStream = new GZIPInputStream(inputStream);
InputOutputStream inputOutputStream = new InputOutputStream();
IOUtils.copy(gzipInputStream, inputOutputStream);
return inputOutputStream.getInputStream();
}
public static byte[] toByteArray(final InputStream inputStream) throws IOException {
Assert.notNull(inputStream, "inputStream");
ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
IOUtils.copy(inputStream, outputStream);
return outputStream.toByteArray();
}
public static String toString(final Reader reader, final Charset charset) throws IOException {
Assert.notNull(reader, "reader");
Assert.notNull(charset, "charset");
byte[] bytes = IOUtils.toByteArray(reader);
String s = new String(bytes, charset);
return s;
}
public static byte[] toByteArray(final Reader reader) throws IOException {
Assert.notNull(reader, "reader");
ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
Writer writer = new OutputStreamWriter(outputStream);
IOUtils.copy(reader, writer);
return outputStream.toByteArray();
}
public static String toString(final InputStream inputStream, final Charset charset)
throws IOException {
Assert.notNull(inputStream, "inputStream");
Assert.notNull(charset, "charset");
byte[] bytes = IOUtils.toByteArray(inputStream);
String s = new String(bytes, charset);
return s;
}
public static byte[] toByteArray(final File file) throws IOException {
Assert.notNull(file, "file");
FileInputStream inputStream = new FileInputStream(file);
ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
IOUtils.copy(inputStream, outputStream);
inputStream.close();
return outputStream.toByteArray();
}
public void test1() throws Exception {
String[] files = new String[] {"/tmp/image1.png", "/tmp/image2.png", "/tmp/image3.png"};
FileOutputStream outputStream = new FileOutputStream("/tmp/zip.zip");
ZipOutputStream zipOutputStream = new ZipOutputStream(outputStream);
for (String s : files) {
File file = new File(s);
FileInputStream inputStream = new FileInputStream(file);
ZipEntry zipEntry = new ZipEntry(file.getName());
zipOutputStream.putNextEntry(zipEntry);
IOUtils.copy(inputStream, zipOutputStream);
zipOutputStream.closeEntry();
}
zipOutputStream.close();
outputStream.close();
}
public static InputStream gunzip(final byte[] bytes) throws IOException {
Assert.notNull(bytes, "bytes");
return IOUtils.gunzip(new ByteArrayInputStream(bytes));
}
public static String toString(final Reader reader) throws IOException {
return IOUtils.toString(reader, Charset.defaultCharset());
}
public static String toString(final InputStream inputStream) throws IOException {
return IOUtils.toString(inputStream, Charset.defaultCharset());
}