Examples of org.apache.commons.io.output.ByteArrayOutputStream

org.apache.commons.io.output.ByteArrayOutputStream
This class implements an output stream in which the data is written into a byte array. The buffer automatically grows as data is written to it.
The data can be retrieved using toByteArray() and toString().
Closing a ByteArrayOutputStream has no effect. The methods in this class can be called after the stream has been closed without generating an IOException.
This is an alternative implementation of the java.io.ByteArrayOutputStream class. The original implementation only allocates 32 bytes at the beginning. As this class is designed for heavy duty it starts at 1024 bytes. In contrast to the original it doesn't reallocate the whole memory block but allocates additional buffers. This way no buffers need to be garbage collected and the contents don't have to be copied to the new buffer. This class is designed to behave exactly like the original. The only exception is the deprecated toString(int) method that has been ignored. @author Jeremias Maerki @version $Id: ByteArrayOutputStream.java 369075 2006-01-14 18:23:42Z scolebourne $

     * @return the requested byte array
     * @throws NullPointerException if the input is null
     * @throws IOException if an I/O error occurs
     */
    public static byte[] toByteArray(InputStream input) throws IOException {
        ByteArrayOutputStream output = new ByteArrayOutputStream();
        copy(input, output);
        return output.toByteArray();
    }

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     * @return the requested byte array
     * @throws NullPointerException if the input is null
     * @throws IOException if an I/O error occurs
     */
    public static byte[] toByteArray(Reader input) throws IOException {
        ByteArrayOutputStream output = new ByteArrayOutputStream();
        copy(input, output);
        return output.toByteArray();
    }

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     * @throws IOException if an I/O error occurs
     * @since Commons IO 1.1
     */
    public static byte[] toByteArray(Reader input, String encoding)
            throws IOException {
        ByteArrayOutputStream output = new ByteArrayOutputStream();
        copy(input, output, encoding);
        return output.toByteArray();
    }

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public class EmbedderMonitorBehaviour {


    @Test
    public void shouldNotPrintWithSilentMonitor() throws Throwable {
        OutputStream out = new ByteArrayOutputStream();
        SilentEmbedderMonitor monitor = new SilentEmbedderMonitor(new PrintStream(out));
        monitor.print("a message");
        monitor.printStackTrace(new RuntimeException());
        assertThat(out.toString(), is(""));
    }

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        assertThat(out.toString(), is(""));
    }


    @Test
    public void shouldOnlyPrintFailuresWithReportingFailuresMonitor() throws Throwable {
        OutputStream out = new ByteArrayOutputStream();
        ReportingFailuresEmbedderMonitor monitor = new ReportingFailuresEmbedderMonitor(new PrintStream(out));
        monitor.runningEmbeddable("embeddable");
        monitor.runningStory("/path");
        monitor.generatingReportsView(new File("target"), Arrays.asList(Format.HTML.name()), new Properties());
        monitor.reportsViewGenerated(new ReportsCount(1, 0, 1, 2, 1, 0, 1, 1));
        assertThat(out.toString(), is(""));
        monitor.batchFailed(new BatchFailures());
        monitor.storyFailed("/path", new RuntimeException());
        assertThat(out.toString(), is(not("")));
   }

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        ExamplesTableFactory factory = new ExamplesTableFactory(parameterConverters);


        // When
        String tableAsString = "|one|two|\n|11|12|\n|21|22|\n";
        ExamplesTable table = factory.createExamplesTable(tableAsString);
        OutputStream out = new ByteArrayOutputStream();
        PrintStream output = new PrintStream(out);
        table.outputTo(output);


        // Then
        assertThat(out.toString(), equalTo(tableAsString));
    }

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     * @return the requested byte array
     * @throws NullPointerException if the input is null
     * @throws IOException if an I/O error occurs
     */
    public static byte[] toByteArray(final InputStream input) throws IOException {
        final ByteArrayOutputStream output = new ByteArrayOutputStream();
        copy(input, output);
        return output.toByteArray();
    }

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     * @throws NullPointerException if the input is null
     * @throws IOException if an I/O error occurs
     * @since 2.3
     */
    public static byte[] toByteArray(final Reader input, final Charset encoding) throws IOException {
        final ByteArrayOutputStream output = new ByteArrayOutputStream();
        copy(input, output, encoding);
        return output.toByteArray();
    }

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   * @Description: 账号数据导出Excel下载
   */
  public InputStream getUserExcel() throws 
    IllegalArgumentException, IOException, IllegalAccessException
  {
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    List<String[]> headNames = new ArrayList<String[]>();
    headNames.add(new String[] { "用户名", "密码", "电子邮件", "类型", "角色", "所属商家" });
    List<String[]> fieldNames = new ArrayList<String[]>();
    fieldNames.add(new String[] { "userName", "pwd", "email", "typeStr", "roleStr", "merchantStr"});


    ExportSetInfo setInfo = new ExportSetInfo();
    setInfo.setObjsMap(userService.getExportData());
    setInfo.setFieldNames(fieldNames);
    setInfo.setTitles(new String[] { "馋八戒后台用户信息" });
    setInfo.setHeadNames(headNames);
    setInfo.setOut(baos);
    
    // 将需要导出的数据输出到baos
    ExcelUtil.export2Excel(setInfo);
    
    return new ByteArrayInputStream(baos.toByteArray());
  }

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   * @Description: 商家数据导出Excel下载
   */
  public InputStream getMerchantExcel() throws 
    IllegalArgumentException, IOException, IllegalAccessException
  {
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    List<String[]> headNames = new ArrayList<String[]>();
    List<String[]> fieldNames = new ArrayList<String[]>();
    headNames.add(new String[] { "商家名称", "商家电话", "商家邮箱", "商家地址",
        "加盟时间", "商家Logo", "法定代表人", "法定人身份证号码", "法定人电话", 
        "法定人家庭地址", "法定人现居地址" });
    fieldNames.add(new String[]{"merchantName", "merchantPhone","merchantEmail",
        "merchantAddress","merchantJoinTime", "merchantLogoUrl","legalName",
        "legalIdCard","legalPhone","legalHomeAddress","legalAddress"});
    
    ExportSetInfo setInfo = new ExportSetInfo();
    setInfo.setObjsMap(merchantService.getExportData());
    setInfo.setFieldNames(fieldNames);
    setInfo.setTitles(new String[] { "馋八戒加盟商家信息" });
    setInfo.setHeadNames(headNames);
    setInfo.setOut(baos);
    
    // 将需要导出的数据输出到baos
    ExcelUtil.export2Excel(setInfo);
    
    return new ByteArrayInputStream(baos.toByteArray());
  }

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