Example usage for java.io StringWriter write

List of usage examples for java.io StringWriter write

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Introduction

In this page you can find the example usage for java.io StringWriter write.

Prototype

public void write(String str)

Source Link

Document

Write a string.

Usage

From source file:com.rhfung.P2PDictionary.DataConnection.java

private String GetDictionaryAsTextFile() {
    StringWriter writer = new StringWriter();

    List<DataEntry> entries; // make a local copy for access without worry about changes thereafter
    this.dataLock.readLock().lock();
    try {/*ww w  .  j ava2 s.  c  om*/
        entries = new Vector<DataEntry>(this.data.size());
        //entries.AddRange(this.data.Values.Where(x => x.subscribed));
        entries.addAll(this.data.values());
    } finally {
        this.dataLock.readLock().unlock();
    }

    // write count of data entries
    writer.write(DATA_NAMESPACE + "/\t" + this.local_uid + "\t0\tRW\t" + entries.size() + "\t" + this.local_uid
            + NEWLINE);

    // write each data entry, converting simple data immediately
    // (pretend i don't know about these non-subscribed entries)
    for (DataEntry d : entries) {
        String permissions = "";

        if (d.subscribed) {

            if (DataMissing.isSingleton(d.value)) {
                permissions = "-W";
            } else {
                permissions = "RW";
            }
        } else {

            if (DataMissing.isSingleton(d.value)) {
                permissions = "--";
            } else {
                permissions = "=-";

            }

        }

        writer.write(d.key + "\t" + d.lastOwnerID + "\t" + d.lastOwnerRevision + "\t" + permissions + "\t"
                + d.getMime() + d.GetMimeSimpleData() + "\t" + GetStringOf(d.senderPath) + NEWLINE);

    }

    return writer.toString();
}

From source file:org.kawanfw.sql.jdbc.ResultSetHttp.java

/**
 * Retrieves the value of the designated column in the current row of this
 * <code>ResultSet</code> object as a <code>java.io.Reader</code> object.
 * /*from www  . j a va 2s . co m*/
 * @return a <code>java.io.Reader</code> object that contains the column
 *         value; if the value is SQL <code>NULL</code>, the value returned
 *         is <code>null</code> in the Java programming language.
 * @param columnIndex
 *            the first column is 1, the second is 2, ...
 * @exception SQLException
 *                if the columnIndex is not valid; if a database access
 *                error occurs or this method is called on a closed result
 *                set
 * @since 1.2
 */
@Override
public java.io.Reader getCharacterStream(int columnIndex) throws SQLException {
    testIfClosed();

    String value = getValueOfList(columnIndex, true);

    if (value == null) {
        // Not sure what to do
        throw new SQLException("Column Index is out of bound: " + columnIndex);
    }

    Reader reader = null;

    // Check if we must get the byte array from an input stream
    if (value.startsWith(TransportConverter.KAWANFW_BYTES_STREAM_FILE)) {
        String remoteFile = StringUtils.substringAfter(value, TransportConverter.KAWANFW_BYTES_STREAM_FILE);
        reader = getReaderFromRemoteFile(remoteFile);
    } else {
        String stringValue = getString(columnIndex);

        debug("Reader in String!");

        if (stringValue == null) {
            return null;
        } else {
            try {
                // Put back clean CR_LF
                BufferedReader bufferedReader = new BufferedReader(new StringReader(stringValue));
                StringWriter stringWriter = new StringWriter();

                String line = null;
                while ((line = bufferedReader.readLine()) != null) {
                    stringWriter.write(line + CR_LF);
                }

                String cleaned = stringWriter.toString();
                reader = new StringReader(cleaned);

            } catch (Exception e) {
                throw new SQLException(e.getMessage(), e);
            }
        }

    }

    return reader;
}

From source file:org.apache.axis2.wsdl.codegen.emitter.AxisServiceBasedMultiLanguageEmitter.java

/**
 * debugging method - write the output to the debugger
 *
 * @param description/*from www.  java 2  s.  c  o  m*/
 * @param doc
 */
protected void debugLogDocument(String description, Document doc) {
    if (log.isDebugEnabled()) {
        try {
            DOMSource source = new DOMSource(doc);
            StringWriter swrite = new StringWriter();
            swrite.write(description);
            swrite.write("\n");
            Transformer transformer = TransformerFactory.newInstance().newTransformer();
            transformer.setOutputProperty("omit-xml-declaration", "yes");
            transformer.setOutputProperty(OutputKeys.INDENT, "yes");
            transformer.transform(source, new StreamResult(swrite));

            log.debug(swrite.toString());

        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

From source file:org.apache.maven.plugin.javadoc.AbstractFixJavadocMojo.java

/**
 * Add in the buffer a default Javadoc for the given class:
 * <br/>//from w w w.  jav a  2s .c  o  m
 * <code>
 * <font color="#808080">1</font>&nbsp;<font color="#ffffff">&nbsp;</font>
 * <font color="#3f5fbf">&#47;&#42;&#42;</font><br />
 * <font color="#808080">2</font>&nbsp;<font color="#ffffff">&nbsp;&nbsp;</font>
 * <font color="#3f5fbf">&#42;&nbsp;{Comment&nbsp;based&nbsp;on&nbsp;the&nbsp;method&nbsp;name}</font><br />
 * <font color="#808080">3</font>&nbsp;<font color="#ffffff">&nbsp;&nbsp;</font>
 * <font color="#3f5fbf">&#42;</font><br />
 * <font color="#808080">4</font>&nbsp;<font color="#ffffff">&nbsp;&nbsp;</font>
 * <font color="#3f5fbf">&#42;&nbsp;</font><font color="#7f9fbf">@param&nbsp;</font>
 * <font color="#3f5fbf">X&nbsp;{added&nbsp;if&nbsp;addMissingParam}</font><br />
 * <font color="#808080">5</font>&nbsp;<font color="#ffffff">&nbsp;&nbsp;</font>
 * <font color="#3f5fbf">&#42;&nbsp;</font><font color="#7f9fbf">@return&nbsp;</font>
 * <font color="#3f5fbf">X&nbsp;{added&nbsp;if&nbsp;addMissingReturn}</font><br />
 * <font color="#808080">6</font>&nbsp;<font color="#ffffff">&nbsp;&nbsp;</font>
 * <font color="#3f5fbf">&#42;&nbsp;</font><font color="#7f9fbf">@throws&nbsp;</font>
 * <font color="#3f5fbf">X&nbsp;{added&nbsp;if&nbsp;addMissingThrows}</font><br />
 * <font color="#808080">7</font>&nbsp;<font color="#ffffff">&nbsp;&nbsp;</font>
 * <font color="#3f5fbf">&#42;&nbsp;</font><font color="#7f9fbf">@since&nbsp;</font>
 * <font color="#3f5fbf">X&nbsp;{added&nbsp;if&nbsp;addMissingSince&nbsp;and&nbsp;new&nbsp;classes
 * from&nbsp;previous&nbsp;version}</font><br />
 * <font color="#808080">8</font>&nbsp;<font color="#ffffff">&nbsp;&nbsp;</font>
 * <font color="#3f5fbf">&#42;&#47;</font><br />
 * <font color="#808080">9</font>&nbsp;<font color="#7f0055"><b>public&nbsp;</b></font>
 * <font color="#7f0055"><b>void&nbsp;</b></font><font color="#000000">dummyMethod</font>
 * <font color="#000000">(&nbsp;</font><font color="#000000">String&nbsp;s&nbsp;</font>
 * <font color="#000000">){}</font>
 * </code>
 *
 * @param buffer     not null
 * @param javaMethod not null
 * @param indent     not null
 * @throws MojoExecutionException if any
 * @see #getDefaultMethodJavadocComment(JavaMethod)
 * @see #appendDefaultSinceTag(StringBuilder, String)
 */
private void addDefaultMethodComment(final StringWriter stringWriter, final JavaMethod javaMethod,
        final String indent) throws MojoExecutionException {
    StringBuilder sb = new StringBuilder();

    // special case
    if (isInherited(javaMethod)) {
        sb.append(indent).append(INHERITED_JAVADOC);
        sb.append(EOL);

        stringWriter.write(sb.toString());
        return;
    }

    sb.append(indent).append(START_JAVADOC);
    sb.append(EOL);
    sb.append(indent).append(SEPARATOR_JAVADOC);
    sb.append(getDefaultMethodJavadocComment(javaMethod));
    sb.append(EOL);

    boolean separatorAdded = false;
    if (fixTag(PARAM_TAG)) {
        if (javaMethod.getParameters() != null) {
            for (int i = 0; i < javaMethod.getParameters().length; i++) {
                JavaParameter javaParameter = javaMethod.getParameters()[i];

                separatorAdded = appendDefaultParamTag(sb, indent, separatorAdded, javaParameter);
            }
        }
        // is generic?
        if (javaMethod.getTypeParameters() != null) {
            for (int i = 0; i < javaMethod.getTypeParameters().length; i++) {
                TypeVariable typeParam = javaMethod.getTypeParameters()[i];

                separatorAdded = appendDefaultParamTag(sb, indent, separatorAdded, typeParam);
            }
        }
    }
    if (fixTag(RETURN_TAG) && javaMethod.getReturns() != null && !javaMethod.getReturns().isVoid()) {
        separatorAdded = appendDefaultReturnTag(sb, indent, separatorAdded, javaMethod);
    }
    if (fixTag(THROWS_TAG) && javaMethod.getExceptions() != null && javaMethod.getExceptions().length > 0) {
        for (int i = 0; i < javaMethod.getExceptions().length; i++) {
            Type exception = javaMethod.getExceptions()[i];

            separatorAdded = appendDefaultThrowsTag(sb, indent, separatorAdded, exception);
        }
    }
    if (fixTag(SINCE_TAG) && isNewMethodFromLastRevision(javaMethod)) {
        separatorAdded = appendDefaultSinceTag(sb, indent, separatorAdded);
    }

    sb.append(indent).append(" ").append(END_JAVADOC);
    sb.append(EOL);

    stringWriter.write(sb.toString());
}

From source file:com.github.gekoh.yagen.ddl.CreateDDL.java

private void writeI18NDetailViewTriggerCreateString(Dialect dialect, StringBuffer buf, String i18nDetailTblName,
        String i18nTblName, String i18nFKColName, Set<String> columns) {
    VelocityContext context = new VelocityContext();
    String triggerBaseName = i18nDetailTblName.length() > MAX_LEN_OBJECT_NAME - 4
            ? i18nDetailTblName.substring(0, MAX_LEN_OBJECT_NAME - 4)
            : i18nDetailTblName;//from   w w  w .  j a v  a  2  s  . c o m

    context.put("dialect", dialect);
    context.put("i18nDetailTblName", i18nDetailTblName);
    context.put("i18nTblName", i18nTblName);
    context.put("i18nFKColName", i18nFKColName);
    context.put("columns", new ArrayList(columns));

    StringWriter wr = new StringWriter();
    if (isOracle(dialect)) {
        String objectName = triggerBaseName + "_TRG";
        context.put("objectName", objectName);

        setNewOldVar(dialect, context);

        mergeTemplateFromResource("I18NDetailViewTrigger.vm.pl.sql", wr, context);

        getProfile().duplex(ObjectType.TRIGGER, objectName, wr.toString());

        buf.append(STATEMENT_SEPARATOR).append(wr.toString()).append("\n/\n");
    } else if (isPostgreSql(dialect)) {
        String triggerName = triggerBaseName + "_TRG";
        String objectName = triggerName + "_function";
        context.put("objectName", objectName);

        setNewOldVar(dialect, context);

        mergeTemplateFromResource("I18NDetailViewTrigger.vm.pl.sql", wr, context);

        buf.append(STATEMENT_SEPARATOR).append(wr.toString()).append("\n/\n");

        buf.append(STATEMENT_SEPARATOR).append("create trigger ").append(triggerName).append("\n")
                .append("instead of insert or update or delete on ").append(i18nDetailTblName).append("\n")
                .append("for each row\n").append("execute procedure ").append(objectName).append("()");
    } else {
        try {
            wr.append(STATEMENT_SEPARATOR);
            writeTriggerSingleOperation(dialect, wr, "I18NDetailViewTrigger.hsqldb.vm.pl.sql", context,
                    triggerBaseName, "_it", "I");
            wr.write("\n/\n");
            wr.append(STATEMENT_SEPARATOR);
            writeTriggerSingleOperation(dialect, wr, "I18NDetailViewTrigger.hsqldb.vm.pl.sql", context,
                    triggerBaseName, "_it", "U");
            wr.write("\n/\n");
            wr.append(STATEMENT_SEPARATOR);
            writeTriggerSingleOperation(dialect, wr, "I18NDetailViewTrigger.hsqldb.vm.pl.sql", context,
                    triggerBaseName, "_it", "D");
            wr.write("\n/\n");

            buf.append(wr.toString());
        } catch (IOException e) {
            LOG.error("error writing audit triggers", e);
        }
    }
}

From source file:org.apache.maven.plugin.javadoc.AbstractFixJavadocMojo.java

/**
 * Take care of block or single comments between Javadoc comment and entity declaration ie:
 * <br/>/*from w w w. j  a va2 s .  c  om*/
 * <code>
 * <font color="#808080">1</font>&nbsp;<font color="#ffffff">&nbsp;</font>
 * <font color="#3f5fbf">&#47;&#42;&#42;</font><br />
 * <font color="#808080">2</font>&nbsp;<font color="#ffffff">&nbsp;&nbsp;</font>
 * <font color="#3f5fbf">&#42;&nbsp;{Javadoc&nbsp;Comment}</font><br />
 * <font color="#808080">3</font>&nbsp;<font color="#ffffff">&nbsp;&nbsp;</font>
 * <font color="#3f5fbf">&#42;&#47;</font><br />
 * <font color="#808080">4</font>&nbsp;<font color="#ffffff">&nbsp;</font>
 * <font color="#3f7f5f">&#47;&#42;</font><br />
 * <font color="#808080">5</font>&nbsp;<font color="#ffffff">&nbsp;&nbsp;</font>
 * <font color="#3f7f5f">&#42;&nbsp;{Block&nbsp;Comment}</font><br />
 * <font color="#808080">6</font>&nbsp;<font color="#ffffff">&nbsp;&nbsp;</font>
 * <font color="#3f7f5f">&#42;&#47;</font><br />
 * <font color="#808080">7</font>&nbsp;<font color="#ffffff">&nbsp;</font>
 * <font color="#3f7f5f">&#47;&#47;&nbsp;{Single&nbsp;comment}</font><br />
 * <font color="#808080">8</font>&nbsp;<font color="#ffffff">&nbsp;</font>
 * <font color="#7f0055"><b>public&nbsp;</b></font><font color="#7f0055"><b>void&nbsp;</b></font>
 * <font color="#000000">dummyMethod</font><font color="#000000">(&nbsp;</font>
 * <font color="#000000">String&nbsp;s&nbsp;</font><font color="#000000">){}</font>
 * </code>
 *
 * @param stringWriter    not null
 * @param originalContent not null
 * @param entity          not null
 * @throws IOException if any
 * @see #extractOriginalJavadoc(String, AbstractJavaEntity)
 */
private void takeCareSingleComment(final StringWriter stringWriter, final String originalContent,
        final AbstractInheritableJavaEntity entity) throws IOException {
    if (entity.getComment() == null) {
        return;
    }

    String javadocComment = trimRight(extractOriginalJavadoc(originalContent, entity));
    String extraComment = javadocComment.substring(javadocComment.indexOf(END_JAVADOC) + END_JAVADOC.length());
    if (StringUtils.isNotEmpty(extraComment)) {
        if (extraComment.contains(EOL)) {
            stringWriter.write(extraComment.substring(extraComment.indexOf(EOL) + EOL.length()));
        } else {
            stringWriter.write(extraComment);
        }
        stringWriter.write(EOL);
    }
}

From source file:org.apache.maven.plugin.javadoc.AbstractFixJavadocMojo.java

/**
 * @param stringWriter    not null//from ww w  .j a v a2s . co  m
 * @param originalContent not null
 * @param entity          not null
 * @param indent          not null
 * @throws MojoExecutionException if any
 * @throws IOException            if any
 */
private void updateEntityComment(final StringWriter stringWriter, final String originalContent,
        final AbstractInheritableJavaEntity entity, final String indent)
        throws MojoExecutionException, IOException {
    String s = stringWriter.toString();
    int i = s.lastIndexOf(START_JAVADOC);
    if (i != -1) {
        String tmp = s.substring(0, i);
        if (tmp.lastIndexOf(EOL) != -1) {
            tmp = tmp.substring(0, tmp.lastIndexOf(EOL));
        }
        stringWriter.getBuffer().delete(0, stringWriter.getBuffer().length());
        stringWriter.write(tmp);
        stringWriter.write(EOL);
    }

    updateJavadocComment(stringWriter, originalContent, entity, indent);
}

From source file:org.apache.maven.plugin.javadoc.AbstractFixJavadocMojo.java

/**
 * Add a default Javadoc for the given class, i.e.:
 * <br/>//  w  w  w.  java  2s.c  o  m
 * <code>
 * <font color="#808080">1</font>&nbsp;<font color="#ffffff">&nbsp;</font>
 * <font color="#3f5fbf">&#47;&#42;&#42;</font><br />
 * <font color="#808080">2</font>&nbsp;<font color="#ffffff">&nbsp;&nbsp;</font>
 * <font color="#3f5fbf">&#42;&nbsp;{Comment&nbsp;based&nbsp;on&nbsp;the&nbsp;class&nbsp;name}</font><br />
 * <font color="#808080">3</font>&nbsp;<font color="#ffffff">&nbsp;&nbsp;</font>
 * <font color="#3f5fbf">&#42;</font><br />
 * <font color="#808080">4</font>&nbsp;<font color="#ffffff">&nbsp;&nbsp;</font>
 * <font color="#3f5fbf">&#42;&nbsp;</font><font color="#7f9fbf">@author&nbsp;</font>
 * <font color="#3f5fbf">X&nbsp;{added&nbsp;if&nbsp;addMissingAuthor}</font><br />
 * <font color="#808080">5</font>&nbsp;<font color="#ffffff">&nbsp;&nbsp;</font>
 * <font color="#3f5fbf">&#42;&nbsp;</font><font color="#7f9fbf">@version&nbsp;</font>
 * <font color="#3f5fbf">X&nbsp;{added&nbsp;if&nbsp;addMissingVersion}</font><br />
 * <font color="#808080">6</font>&nbsp;<font color="#ffffff">&nbsp;&nbsp;</font>
 * <font color="#3f5fbf">&#42;&nbsp;</font><font color="#7f9fbf">@since&nbsp;</font>
 * <font color="#3f5fbf">X&nbsp;{added&nbsp;if&nbsp;addMissingSince&nbsp;and&nbsp;new&nbsp;classes
 * from&nbsp;previous&nbsp;version}</font><br />
 * <font color="#808080">7</font>&nbsp;<font color="#ffffff">&nbsp;&nbsp;</font>
 * <font color="#3f5fbf">&#42;&#47;</font><br />
 * <font color="#808080">8</font>&nbsp;<font color="#7f0055"><b>public&nbsp;class&nbsp;</b></font>
 * <font color="#000000">DummyClass&nbsp;</font><font color="#000000">{}</font></code>
 * </code>
 *
 * @param buffer    not null
 * @param javaClass not null
 * @param indent    not null
 * @see #getDefaultClassJavadocComment(JavaClass)
 * @see #appendDefaultAuthorTag(StringBuilder, String)
 * @see #appendDefaultSinceTag(StringBuilder, String)
 * @see #appendDefaultVersionTag(StringBuilder, String)
 */
private void addDefaultClassComment(final StringWriter stringWriter, final JavaClass javaClass,
        final String indent) {
    StringBuilder sb = new StringBuilder();

    sb.append(indent).append(START_JAVADOC);
    sb.append(EOL);
    sb.append(indent).append(SEPARATOR_JAVADOC);
    sb.append(getDefaultClassJavadocComment(javaClass));
    sb.append(EOL);

    appendSeparator(sb, indent);

    appendDefaultAuthorTag(sb, indent);

    appendDefaultVersionTag(sb, indent);

    if (fixTag(SINCE_TAG)) {
        if (!ignoreClirr) {
            if (isNewClassFromLastVersion(javaClass)) {
                appendDefaultSinceTag(sb, indent);
            }
        } else {
            appendDefaultSinceTag(sb, indent);
            addSinceClasses(javaClass);
        }
    }

    sb.append(indent).append(" ").append(END_JAVADOC);
    sb.append(EOL);

    stringWriter.write(sb.toString());
}

From source file:org.apache.maven.plugin.javadoc.AbstractFixJavadocMojo.java

/**
 * @param stringWriter    not null/*from   w w w  .  j  av a2  s.  c o  m*/
 * @param originalContent not null
 * @param entity          not null
 * @param indent          not null
 * @throws MojoExecutionException if any
 * @throws IOException            if any
 */
private void updateJavadocComment(final StringWriter stringWriter, final String originalContent,
        final AbstractInheritableJavaEntity entity, final String indent)
        throws MojoExecutionException, IOException {
    if (entity.getComment() == null && (entity.getTags() == null || entity.getTags().length == 0)) {
        return;
    }

    boolean isJavaMethod = false;
    if (entity instanceof JavaMethod) {
        isJavaMethod = true;
    }

    StringBuilder sb = new StringBuilder();

    // special case for inherited method
    if (isJavaMethod) {
        JavaMethod javaMethod = (JavaMethod) entity;

        if (isInherited(javaMethod)) {
            // QDOX-154 could be empty
            if (StringUtils.isEmpty(javaMethod.getComment())) {
                sb.append(indent).append(INHERITED_JAVADOC);
                sb.append(EOL);
                stringWriter.write(sb.toString());
                return;
            }

            String javadoc = getJavadocComment(originalContent, javaMethod);

            // case: /** {@inheritDoc} */ or no tags
            if (hasInheritedTag(javadoc)
                    && (javaMethod.getTags() == null || javaMethod.getTags().length == 0)) {
                sb.append(indent).append(INHERITED_JAVADOC);
                sb.append(EOL);
                stringWriter.write(sb.toString());
                return;
            }

            if (javadoc.contains(START_JAVADOC)) {
                javadoc = javadoc.substring(javadoc.indexOf(START_JAVADOC) + START_JAVADOC.length());
            }
            if (javadoc.contains(END_JAVADOC)) {
                javadoc = javadoc.substring(0, javadoc.indexOf(END_JAVADOC));
            }

            sb.append(indent).append(START_JAVADOC);
            sb.append(EOL);
            if (!javadoc.contains(INHERITED_TAG)) {
                sb.append(indent).append(SEPARATOR_JAVADOC).append(INHERITED_TAG);
                sb.append(EOL);
                appendSeparator(sb, indent);
            }
            javadoc = removeLastEmptyJavadocLines(javadoc);
            javadoc = alignIndentationJavadocLines(javadoc, indent);
            sb.append(javadoc);
            sb.append(EOL);
            if (javaMethod.getTags() != null) {
                for (int i = 0; i < javaMethod.getTags().length; i++) {
                    DocletTag docletTag = javaMethod.getTags()[i];

                    // Voluntary ignore these tags
                    if (JavadocUtil.equals(docletTag.getName(), PARAM_TAG, RETURN_TAG, THROWS_TAG)) {
                        continue;
                    }

                    String s = getJavadocComment(originalContent, entity, docletTag);
                    s = removeLastEmptyJavadocLines(s);
                    s = alignIndentationJavadocLines(s, indent);
                    sb.append(s);
                    sb.append(EOL);
                }
            }
            sb.append(indent).append(" ").append(END_JAVADOC);
            sb.append(EOL);

            if (hasInheritedTag(sb.toString().trim())) {
                sb = new StringBuilder();
                sb.append(indent).append(INHERITED_JAVADOC);
                sb.append(EOL);
                stringWriter.write(sb.toString());
                return;
            }

            stringWriter.write(sb.toString());
            return;
        }
    }

    sb.append(indent).append(START_JAVADOC);
    sb.append(EOL);

    // comment
    if (StringUtils.isNotEmpty(entity.getComment())) {
        updateJavadocComment(sb, originalContent, entity, indent);
    } else {
        addDefaultJavadocComment(sb, entity, indent, isJavaMethod);
    }

    // tags
    if (entity.getTags() != null && entity.getTags().length > 0) {
        updateJavadocTags(sb, originalContent, entity, indent, isJavaMethod);
    } else {
        addDefaultJavadocTags(sb, entity, indent, isJavaMethod);
    }

    sb = new StringBuilder(removeLastEmptyJavadocLines(sb.toString())).append(EOL);

    sb.append(indent).append(" ").append(END_JAVADOC);
    sb.append(EOL);

    stringWriter.write(sb.toString());
}

From source file:com.kodemore.utility.Kmu.java

public static String normalizeLineEnds(String source, String eol) {
    String line;/* w ww. j a v  a 2s.c  o  m*/
    BufferedReader in = null;
    StringWriter out = null;

    try {
        if (source == null)
            return null;

        StringReader sr = new StringReader(source);
        in = new BufferedReader(sr);
        out = new StringWriter();

        while (true) {
            line = in.readLine();
            if (line == null)
                break;

            out.write(line);
            out.write(eol);
        }

        return out.toString();
    } catch (IOException ex) {
        throw toRuntime(ex);
    } finally {
        closeSafely(in);
        closeSafely(out);
    }
}