Java tutorial
/* * Copyright 2015 Igor Maznitsa. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.igormaznitsa.mindmap.plugins.exporters; import com.igormaznitsa.mindmap.plugins.api.AbstractExporter; import com.grack.nanojson.JsonStringWriter; import com.grack.nanojson.JsonWriter; import com.igormaznitsa.mindmap.model.Extra; import com.igormaznitsa.mindmap.model.ExtraFile; import com.igormaznitsa.mindmap.model.ExtraLink; import com.igormaznitsa.mindmap.model.ExtraNote; import com.igormaznitsa.mindmap.model.ExtraTopic; import com.igormaznitsa.mindmap.model.Topic; import com.igormaznitsa.mindmap.swing.panel.MindMapPanel; import com.igormaznitsa.mindmap.swing.panel.MindMapPanelConfig; import com.igormaznitsa.mindmap.swing.panel.ui.AbstractCollapsableElement; import com.igormaznitsa.mindmap.swing.panel.utils.Utils; import java.io.BufferedOutputStream; import java.io.File; import java.io.FileOutputStream; import java.io.IOException; import java.io.OutputStream; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; import javax.annotation.Nonnull; import javax.annotation.Nullable; import javax.swing.Icon; import javax.swing.JComponent; import org.apache.commons.io.IOUtils; import org.apache.commons.lang.StringEscapeUtils; import com.igormaznitsa.meta.annotation.MustNotContainNull; import com.igormaznitsa.mindmap.swing.panel.Texts; import com.igormaznitsa.mindmap.swing.panel.utils.MindMapUtils; import com.igormaznitsa.mindmap.swing.services.IconID; import com.igormaznitsa.mindmap.swing.services.ImageIconServiceProvider; import static com.igormaznitsa.meta.common.utils.Assertions.assertNotNull; public class MindmupExporter extends AbstractExporter { private static int idCounter = 1; private static class TopicData { private final int uid; private final int id; private final Topic topic; public TopicData(final int uid, final int id, @Nonnull final Topic topic) { this.uid = uid; this.id = id; this.topic = topic; } public int getUID() { return this.uid; } public int getID() { return id; } @Nonnull public Topic getTopic() { return this.topic; } } private static class State { private JsonStringWriter json = JsonWriter.string(); private final Map<String, TopicData> topicsWithId = new HashMap<String, TopicData>(); private final List<TopicData> topicsContainsJump = new ArrayList<TopicData>(); public State() { } public void processTopic(final int uid, final int id, @Nonnull final Topic topic) { final String topicUID = getTopicUid(topic); if (topicUID != null) { topicsWithId.put(topicUID, new TopicData(uid, id, topic)); } final ExtraTopic linkto = (ExtraTopic) topic.getExtras().get(Extra.ExtraType.TOPIC); if (linkto != null) { this.topicsContainsJump.add(new TopicData(uid, id, topic)); } } @Nonnull @MustNotContainNull public List<TopicData> getTopicsContainingJump() { return this.topicsContainsJump; } @Nullable public TopicData findTopic(@Nonnull final ExtraTopic link) { return topicsWithId.get(link.getValue()); } @SuppressWarnings("unchecked") @Nonnull public State startObj(@Nonnull final String key) { this.json = this.json.object(key); return this; } @SuppressWarnings("unchecked") @Nonnull public State startObj() { this.json = this.json.object(); return this; } @SuppressWarnings("unchecked") @Nonnull public State startArray(@Nonnull final String key) { this.json = this.json.array(key); return this; } @Nonnull public State set(@Nonnull final String key, @Nonnull final String value) { this.json.value(key, value); return this; } @Nonnull public State set(@Nonnull final String key, final int value) { this.json.value(key, value); return this; } @SuppressWarnings("unchecked") @Nonnull public State end() { this.json = json.end(); return this; } @Override @Nonnull public String toString() { return json.done(); } } private static final Icon ICO = ImageIconServiceProvider.findInstance() .getIconForId(IconID.POPUP_EXPORT_MINDMUP); @Nullable private static String getTopicUid(@Nonnull final Topic topic) { return topic.getAttribute(ExtraTopic.TOPIC_UID_ATTR); } private int writeTopic(@Nonnull final State state, int id, @Nonnull final MindMapPanelConfig cfg, @Nonnull final Topic topic) { state.startObj(Integer.toString(idCounter)); state.processTopic(idCounter, id, topic); idCounter++; state.set("title", topic.getText()); //NOI18N state.set("id", id); //NOI18N id = Math.abs(id); state.startObj("ideas"); //NOI18N for (final Topic t : topic.getChildren()) { id = writeTopic(state, id + 1, cfg, t); } state.end(); state.startObj("attr"); //NOI18N state.startObj("style") .set("background", assertNotNull(Utils.color2html(MindMapUtils.getBackgroundColor(cfg, topic), false))) .set("color", assertNotNull(Utils.color2html(MindMapUtils.getTextColor(cfg, topic), false))).end(); //NOI18N final String attachment = makeHtmlFromExtras(topic); if (attachment != null) { state.startObj("attachment"); //NOI18N state.set("contentType", "text/html"); //NOI18N state.set("content", attachment); //NOI18N state.end(); } state.end(); state.end(); return id; } @Nullable private static String makeHtmlFromExtras(@Nonnull final Topic topic) { final ExtraFile file = (ExtraFile) topic.getExtras().get(Extra.ExtraType.FILE); final ExtraNote note = (ExtraNote) topic.getExtras().get(Extra.ExtraType.NOTE); final ExtraLink link = (ExtraLink) topic.getExtras().get(Extra.ExtraType.LINK); if (file == null && link == null && note == null) { return null; } final StringBuilder result = new StringBuilder(); if (file != null) { final String uri = file.getValue().asString(true, false); result.append("FILE: <a href=\"").append(uri).append("\">").append(uri).append("</a><br>"); //NOI18N } if (link != null) { final String uri = link.getValue().asString(true, true); result.append("LINK: <a href=\"").append(uri).append("\">").append(uri).append("</a><br>"); //NOI18N } if (note != null) { if (file != null || link != null) { result.append("<br>"); //NOI18N } result.append("<pre>").append(StringEscapeUtils.escapeHtml(note.getValue())).append("</pre>"); //NOI18N } return result.toString(); } private void writeRoot(@Nonnull final State state, @Nonnull final MindMapPanelConfig cfg, @Nullable final Topic root) { state.startObj(); if (root == null) { state.set("title", ""); //NOI18N } else { state.set("title", root.getText()); //NOI18N } state.set("id", 1); //NOI18N state.set("formatVersion", 2); //NOI18N final List<Topic> leftChildren = new ArrayList<Topic>(); final List<Topic> rightChildren = new ArrayList<Topic>(); if (root != null) { for (final Topic t : root.getChildren()) { if (AbstractCollapsableElement.isLeftSidedTopic(t)) { leftChildren.add(t); } else { rightChildren.add(t); } } } state.startObj("ideas"); //NOI18N if (root != null) { state.processTopic(0, 1, root); } int id = 2; for (final Topic right : rightChildren) { id = writeTopic(state, id + 1, cfg, right); } for (final Topic left : leftChildren) { id = writeTopic(state, -(id + 1), cfg, left); } state.end(); if (root != null) { state.startObj("attr"); //NOI18N state.startObj("style") .set("background", assertNotNull(Utils.color2html(MindMapUtils.getBackgroundColor(cfg, root), false)))//NOI18N .set("color", assertNotNull(Utils.color2html(MindMapUtils.getTextColor(cfg, root), false)))//NOI18N .end(); //NOI18N } final String attachment = root == null ? null : makeHtmlFromExtras(root); if (attachment != null) { state.startObj("attachment"); //NOI18N state.set("contentType", "text/html"); //NOI18N state.set("content", attachment); //NOI18N state.end(); } state.end(); final List<TopicData> topicsWithJumps = state.getTopicsContainingJump(); if (!topicsWithJumps.isEmpty()) { state.startArray("links"); //NOI18N for (final TopicData src : topicsWithJumps) { final TopicData dest = state .findTopic((ExtraTopic) src.getTopic().getExtras().get(Extra.ExtraType.TOPIC)); if (dest != null) { state.startObj(); //NOI18N state.set("ideaIdFrom", src.getID()); //NOI18N state.set("ideaIdTo", dest.getID()); //NOI18N state.startObj("attr").startObj("style").set("color", "#FF0000").set("lineStyle", "dashed") .end().end(); //NOI18N state.end(); } } state.end(); } if (root != null) state.end(); } @Override public void doExport(@Nonnull final MindMapPanel panel, @Nullable final JComponent options, @Nullable final OutputStream out) throws IOException { final State state = new State(); writeRoot(state, panel.getConfiguration(), panel.getModel().getRoot()); final String text = state.toString(); File fileToSaveMap = null; OutputStream theOut = out; if (theOut == null) { fileToSaveMap = MindMapUtils.selectFileToSaveForFileFilter(panel, Texts.getString("MindmupExporter.saveDialogTitle"), ".mup", Texts.getString("MindmupExporter.filterDescription"), Texts.getString("MindmupExporter.approveButtonText")); fileToSaveMap = MindMapUtils.checkFileAndExtension(panel, fileToSaveMap, ".mup");//NOI18N theOut = fileToSaveMap == null ? null : new BufferedOutputStream(new FileOutputStream(fileToSaveMap, false)); } if (theOut != null) { try { IOUtils.write(text, theOut, "UTF-8"); } finally { if (fileToSaveMap != null) { IOUtils.closeQuietly(theOut); } } } } @Override @Nonnull public String getName(@Nonnull final MindMapPanel panel, @Nullable Topic actionTopic, @Nonnull @MustNotContainNull Topic[] selectedTopics) { return Texts.getString("MindmupExporter.exporterName"); } @Override @Nonnull public String getReference(@Nonnull final MindMapPanel panel, @Nullable Topic actionTopic, @Nonnull @MustNotContainNull Topic[] selectedTopics) { return Texts.getString("MindmupExporter.exporterReference"); } @Override @Nonnull public Icon getIcon(@Nonnull final MindMapPanel panel, @Nullable Topic actionTopic, @Nonnull @MustNotContainNull Topic[] selectedTopics) { return ICO; } @Override public int getOrder() { return 2; } }