Examples of org.apache.openjpa.lib.xml.XMLWriter

org.apache.openjpa.lib.xml.XMLWriter
The XMLWriter is a writer type for pretty-printing XML. It assumes that the streamed XML will be given without any whitespace, other than the space within text blocks. @author Abe White @nojavadoc

                } else
                    writer = new StringWriter();


                Writer xml = writer;
                if ((flags & PRETTY) > 0)
                    xml = new XMLWriter(writer);
                trans.setResult(new StreamResult(xml));
                serialize(fileObjs, trans, flags);


                if (output != null)
                    output.put(file, ((StringWriter) writer).toString());

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    }


    public void serialize(Writer out, int flags) throws IOException {
        try {
            if ((flags & PRETTY) > 0)
                serialize(new StreamResult(new XMLWriter(out)), flags);
            else
                serialize(new StreamResult(out), flags);
        } catch (SAXException se) {
            throw new IOException(se.toString());
        }

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     * Write the given collection of {@link ObjectData}s to the given file.
     */
    private void write(Collection datas, FileWriter fw)
        throws Exception {
        // create an XML pretty printer to write out the objects
        Writer out = new XMLWriter(fw);


        // start the file; the root node is an "extent"
        out.write("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
        out.write("<extent>");


        // run through each object in the collection
        for (Iterator itr = datas.iterator(); itr.hasNext();) {
            ObjectData obj = (ObjectData) itr.next();
            ClassMetaData meta = obj.getMetaData();


            // write out the "object" element start
            out.write("<object class=\"");
            out.write(meta.getDescribedType().getName());
            out.write("\" oid=\"");
            out.write(obj.getId().toString());
            out.write("\" version=\"");
            out.write(obj.getVersion().toString());
            out.write("\">");


            // run through each field writing out the value
            FieldMetaData[] fmds = meta.getFields();
            for (int i = 0; i < fmds.length; i++) {
                if (fmds[i].getManagement() != fmds[i].MANAGE_PERSISTENT)
                    continue;


                out.write("<field name=\"");
                out.write(fmds[i].getName());
                out.write("\">");


                // write out the field data depending upon type
                switch (fmds[i].getTypeCode()) {
                    case JavaTypes.COLLECTION:
                    case JavaTypes.ARRAY:
                        Collection c = (Collection) obj.getField(i);
                        if (c == null)
                            break;


                        // write out each of the elements
                        int elemType = fmds[i].getElement().getTypeCode();
                        for (Iterator ci = c.iterator(); ci.hasNext();) {
                            out.write("<element>");
                            writeDataValue(out, elemType, ci.next());
                            out.write("</element>");
                        }
                        break;


                    case JavaTypes.MAP:
                        Map m = (Map) obj.getField(i);
                        if (m == null)
                            break;


                        // write out each of the map entries
                        Collection entries = m.entrySet();
                        int keyType = fmds[i].getKey().getTypeCode();
                        int valueType = fmds[i].getElement().getTypeCode();
                        for (Iterator ei = entries.iterator(); ei.hasNext();) {
                            Map.Entry e = (Map.Entry) ei.next();
                            out.write("<key>");
                            writeDataValue(out, keyType, e.getKey());
                            out.write("</key>");
                            out.write("<value>");
                            writeDataValue(out, valueType, e.getValue());
                            out.write("</value>");
                        }
                        break;


                    default:
                        writeDataValue(out, fmds[i].getTypeCode(),
                            obj.getField(i));
                }
                out.write("</field>");
            }
            out.write("</object>");
        }
        out.write("</extent>");
    }

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                } else
                    writer = new StringWriter();


                Writer xml = writer;
                if ((flags & PRETTY) > 0)
                    xml = new XMLWriter(writer);
                trans.setResult(new StreamResult(xml));
                serialize(fileObjs, trans, flags);


                if (output != null)
                    output.put(file, ((StringWriter) writer).toString());

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    }


    public void serialize(Writer out, int flags) throws IOException {
        try {
            if ((flags & PRETTY) > 0)
                serialize(new StreamResult(new XMLWriter(out)), flags);
            else
                serialize(new StreamResult(out), flags);
        } catch (SAXException se) {
            throw new IOException(se.toString());
        }

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                } else
                    writer = new StringWriter();


                Writer xml = writer;
                if ((flags & PRETTY) > 0)
                    xml = new XMLWriter(writer);
                trans.setResult(new StreamResult(xml));
                serialize(fileObjs, trans, flags);


                if (output != null)
                    output.put(file, ((StringWriter) writer).toString());

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    }


    public void serialize(Writer out, int flags) throws IOException {
        try {
            if ((flags & PRETTY) > 0)
                serialize(new StreamResult(new XMLWriter(out)), flags);
            else
                serialize(new StreamResult(out), flags);
        } catch (SAXException se) {
            throw new IOException(se.toString());
        }

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     * Write the given collection of {@link ObjectData}s to the given file.
     */
    private void write(Collection datas, FileWriter fw)
        throws Exception {
        // create an XML pretty printer to write out the objects
        Writer out = new XMLWriter(fw);


        // start the file; the root node is an "extent"
        out.write("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
        out.write("<extent>");


        // run through each object in the collection
        for (Iterator itr = datas.iterator(); itr.hasNext();) {
            ObjectData obj = (ObjectData) itr.next();
            ClassMetaData meta = obj.getMetaData();


            // write out the "object" element start
            out.write("<object class=\"");
            out.write(meta.getDescribedType().getName());
            out.write("\" oid=\"");
            out.write(obj.getId().toString());
            out.write("\" version=\"");
            out.write(obj.getVersion().toString());
            out.write("\">");


            // run through each field writing out the value
            FieldMetaData[] fmds = meta.getFields();
            for (int i = 0; i < fmds.length; i++) {
                if (fmds[i].getManagement() != fmds[i].MANAGE_PERSISTENT)
                    continue;


                out.write("<field name=\"");
                out.write(fmds[i].getName());
                out.write("\">");


                // write out the field data depending upon type
                switch (fmds[i].getTypeCode()) {
                    case JavaTypes.COLLECTION:
                    case JavaTypes.ARRAY:
                        Collection c = (Collection) obj.getField(i);
                        if (c == null)
                            break;


                        // write out each of the elements
                        int elemType = fmds[i].getElement().getTypeCode();
                        for (Iterator ci = c.iterator(); ci.hasNext();) {
                            out.write("<element>");
                            writeDataValue(out, elemType, ci.next());
                            out.write("</element>");
                        }
                        break;


                    case JavaTypes.MAP:
                        Map m = (Map) obj.getField(i);
                        if (m == null)
                            break;


                        // write out each of the map entries
                        Collection entries = m.entrySet();
                        int keyType = fmds[i].getKey().getTypeCode();
                        int valueType = fmds[i].getElement().getTypeCode();
                        for (Iterator ei = entries.iterator(); ei.hasNext();) {
                            Map.Entry e = (Map.Entry) ei.next();
                            out.write("<key>");
                            writeDataValue(out, keyType, e.getKey());
                            out.write("</key>");
                            out.write("<value>");
                            writeDataValue(out, valueType, e.getValue());
                            out.write("</value>");
                        }
                        break;


                    default:
                        writeDataValue(out, fmds[i].getTypeCode(),
                            obj.getField(i));
                }
                out.write("</field>");
            }
            out.write("</object>");
        }
        out.write("</extent>");
    }

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     * Write the given collection of {@link ObjectData}s to the given file.
     */
    private void write(Collection datas, FileWriter fw)
        throws Exception {
        // create an XML pretty printer to write out the objects
        Writer out = new XMLWriter(fw);


        // start the file; the root node is an "extent"
        out.write("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
        out.write("<extent>");


        // run through each object in the collection
        for (Iterator itr = datas.iterator(); itr.hasNext();) {
            ObjectData obj = (ObjectData) itr.next();
            ClassMetaData meta = obj.getMetaData();


            // write out the "object" element start
            out.write("<object class=\"");
            out.write(meta.getDescribedType().getName());
            out.write("\" oid=\"");
            out.write(obj.getId().toString());
            out.write("\" version=\"");
            out.write(obj.getVersion().toString());
            out.write("\">");


            // run through each field writing out the value
            FieldMetaData[] fmds = meta.getFields();
            for (int i = 0; i < fmds.length; i++) {
                if (fmds[i].getManagement() != fmds[i].MANAGE_PERSISTENT)
                    continue;


                out.write("<field name=\"");
                out.write(fmds[i].getName());
                out.write("\">");


                // write out the field data depending upon type
                switch (fmds[i].getTypeCode()) {
                    case JavaTypes.COLLECTION:
                    case JavaTypes.ARRAY:
                        Collection c = (Collection) obj.getField(i);
                        if (c == null)
                            break;


                        // write out each of the elements
                        int elemType = fmds[i].getElement().getTypeCode();
                        for (Iterator ci = c.iterator(); ci.hasNext();) {
                            out.write("<element>");
                            writeDataValue(out, elemType, ci.next());
                            out.write("</element>");
                        }
                        break;


                    case JavaTypes.MAP:
                        Map m = (Map) obj.getField(i);
                        if (m == null)
                            break;


                        // write out each of the map entries
                        Collection entries = m.entrySet();
                        int keyType = fmds[i].getKey().getTypeCode();
                        int valueType = fmds[i].getElement().getTypeCode();
                        for (Iterator ei = entries.iterator(); ei.hasNext();) {
                            Map.Entry e = (Map.Entry) ei.next();
                            out.write("<key>");
                            writeDataValue(out, keyType, e.getKey());
                            out.write("</key>");
                            out.write("<value>");
                            writeDataValue(out, valueType, e.getValue());
                            out.write("</value>");
                        }
                        break;


                    default:
                        writeDataValue(out, fmds[i].getTypeCode(),
                            obj.getField(i));
                }
                out.write("</field>");
            }
            out.write("</object>");
        }
        out.write("</extent>");
    }

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Related Classes of org.apache.openjpa.lib.xml.XMLWriter

org.apache.openjpa.lib.meta.XMLMetaDataSerializer

org.apache.openjpa.xmlstore.XMLFileHandler

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