Java tutorial
/* * Copyright 2012 Johns Hopkins University * * 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 org.dataconservancy.dcs.access.client.model; import com.google.gwt.core.client.JavaScriptObject; import com.google.gwt.core.client.JsArray; import com.google.gwt.core.client.JsArrayString; import com.google.gwt.event.dom.client.ClickEvent; import com.google.gwt.event.dom.client.ClickHandler; import com.google.gwt.jsonp.client.JsonpRequestBuilder; import com.google.gwt.user.client.Window; import com.google.gwt.user.client.rpc.AsyncCallback; import com.google.gwt.user.client.rpc.IsSerializable; import com.google.gwt.user.client.ui.*; import org.dataconservancy.dcs.access.client.SeadApp; import org.dataconservancy.dcs.access.client.SeadState; import org.dataconservancy.dcs.access.client.Util; import org.dataconservancy.dcs.access.client.presenter.MediciIngestPresenter; import org.dataconservancy.dcs.access.shared.MediciInstance; import org.dataconservancy.dcs.access.ui.client.model.JsFixity; import org.dataconservancy.dcs.access.ui.client.model.JsFormat; import java.util.List; /** * Models a Data Conservancy File */ public final class JsFile extends JsEntity implements IsSerializable { protected JsFile() { } public void setName(String name) { set("name", name); } public String getName() { return getString("name"); } public boolean isExtant() { return getBoolean("extant"); } public long getSizeBytes() { return getLong("sizeBytes"); } @SuppressWarnings("unchecked") public JsArray<JsFixity> getFixity() { return (JsArray<JsFixity>) getArray("fixity"); } @SuppressWarnings("unchecked") public JsArray<JsFormat> getFormats() { return (JsArray<JsFormat>) getArray("formats"); } public String getSource() { return getString("source"); } public Boolean getValid() { return getBooleanObject("valid"); } public String getParent() { return getString("parent"); } @SuppressWarnings("unchecked") public JsArray<JsMetadata> getMetadata() { return (JsArray<JsMetadata>) getArray("metadata"); } public void setMetadata(JsArray<JsMetadata> metadata) { JsArray<JsMetadata> copy = JavaScriptObject.createArray().cast(); for (int i = 0; i < metadata.length(); i++) { System.out.println("setting:" + metadata.get(i).getMetadata()); copy.set(i, metadata.get(i)); } this.getMetadata().setLength(0);// = JavaScriptObject.createArray().cast(); this.getMetadata().setLength(metadata.length()); for (int i = 0; i < copy.length(); i++) { copy.set(i, copy.get(i)); this.getMetadata().push(copy.get(i)); } } public JsArrayString getMetadataRefs() { return getRefs("metadataRef"); } public JsPrimaryDataLocation getPrimaryDataLocation() { return (JsPrimaryDataLocation) getObject("primaryLoc"); } public Widget display() { FlowPanel panel = new FlowPanel(); if (!getSource().isEmpty()) { Button b = new Button("Download"); panel.add(b); b.addClickHandler(new ClickHandler() { public void onClick(ClickEvent event) { String source = SeadApp.datastreamURLnoEncoding(getId().replace(":", "%3A")); String strWindowFeatures = "menubar=yes,location=yes,resizable=yes,scrollbars=yes,status=yes"; Window.open(source, "_blank", strWindowFeatures); } }); //panel.add(new Anchor("Download", false, getSource(), "_blank")); } final FlexTable table = Util.createTable(//"Id", "Entity type", "Name", "Appears in Collections", "Size", "Valid", "Extant", "Metadata refs", "Alternate Ids", "Primary Location", "ACR Location"); Util.addColumn(table, // null, "File", getName(), null, "" + getSizeBytes() + " bytes", getValid() == null ? "Unknown" : "" + getValid(), "" + isExtant()); // table.setWidget(0, 1, Util.entityLink(getId())); JsonpRequestBuilder rb = new JsonpRequestBuilder(); String parentdu = SeadApp.accessurl + SeadApp.queryPath + "?q=" + "id:(\"" + getParent() + "\")" + "&offset=0&max=200"; rb.requestObject(parentdu, new AsyncCallback<JsSearchResult>() { public void onFailure(Throwable caught) { Window.alert("Failed"); } public void onSuccess(JsSearchResult dus) { FlowPanel desc = new FlowPanel(); for (int i = 0; i < dus.matches().length(); i++) { JsMatch m = dus.matches().get(i); JsDeliverableUnit entity = (JsDeliverableUnit) m.getEntity(); //System.out.println("Title="+entity.getCoreMd().getTitle()); desc.add(new Hyperlink(" " + entity.getCoreMd().getTitle(), true, SeadState.ENTITY.toToken(entity.getId()))); } table.setWidget(2, 1, desc); } }); if (getMetadataRefs() != null) { table.setWidget(6, 1, Util.entityLinks(getMetadataRefs())); } FlowPanel primaryLocPanel = new FlowPanel(); if (getPrimaryDataLocation() != null) primaryLocPanel.add(getPrimaryDataLocation().display()); if (getAlternateIds() != null) { final JsArray<JsAlternateId> altIds = getAlternateIds(); FlowPanel altIdPanel = new FlowPanel(); final FlowPanel altLocPanel = new FlowPanel(); for (int i = 0; i < altIds.length(); i++) { final String type = altIds.get(i).getTypeId(); final String value = altIds.get(i).getIdValue(); AsyncCallback<List<MediciInstance>> callback = new AsyncCallback<List<MediciInstance>>() { @Override public void onSuccess(List<MediciInstance> result) { for (MediciInstance instance : result) { if (instance.getType().equalsIgnoreCase(type)) { final String finalLink = instance.getUrl() + "/#dataset?id=" + value; String altIdStr = getName(); Label altIdLabel = Util.label(altIdStr, "Hyperlink"); altIdLabel.addClickHandler(new ClickHandler() { @Override public void onClick(ClickEvent event) { Window.open(finalLink, "_blank", ""); } }); altLocPanel.add(altIdLabel); break; } } } @Override public void onFailure(Throwable caught) { // TODO Auto-generated method stub } }; MediciIngestPresenter.mediciService.getAcrInstances(callback); } table.setWidget(7, 1, altIdPanel); table.setWidget(8, 1, primaryLocPanel); table.setWidget(9, 1, altLocPanel); } //belongs to dataset panel.add(table); if (getFormats() != null && getFormats().length() > 0) { panel.add(Util.label("Formats", "SubSectionHeader")); JsFormat.display(panel, getFormats()); } if (getMetadata() != null && getMetadata().length() > 0) { panel.add(Util.label("Additional metadata", "SubSectionHeader")); JsMetadata.display(panel, getMetadata()); } if (getFixity() != null && getFixity().length() > 0) { panel.add(Util.label("Fixity", "SubSectionHeader")); JsFixity.display(panel, getFixity()); } return panel; } public static void display(Panel panel, JsArray<JsFile> array) { if (array.length() == 1) { Widget w = array.get(0).display(); w.setStylePrimaryName("Entity"); panel.add(w); return; } TabPanel tabs = new DecoratedTabPanel(); ScrollPanel top = new ScrollPanel(tabs); top.setStylePrimaryName("Entity"); tabs.setAnimationEnabled(true); for (int i = 0; i < array.length(); i++) { JsFile file = array.get(i); tabs.add(file.display(), file.getName()); } if (array.length() > 0) { tabs.selectTab(0); } panel.add(top); } public String summary() { return getName(); } }