Java tutorial
/* * Licensed to DuraSpace under one or more contributor license agreements. * See the NOTICE file distributed with this work for additional information * regarding copyright ownership. * * DuraSpace licenses this file to you 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.fcrepo.integration; import static com.gargoylesoftware.htmlunit.BrowserVersion.FIREFOX_45; import static com.google.common.collect.Lists.transform; import static java.util.UUID.randomUUID; import static javax.ws.rs.core.HttpHeaders.ACCEPT; import static javax.ws.rs.core.HttpHeaders.CONTENT_TYPE; import static javax.ws.rs.core.Response.Status.NOT_FOUND; import static org.fcrepo.kernel.api.RdfLexicon.FEDORA_CONFIG_NAMESPACE; import static org.fcrepo.kernel.api.RdfLexicon.REPOSITORY_NAMESPACE; import static org.junit.Assert.assertEquals; import static org.junit.Assert.assertNotEquals; import static org.junit.Assert.assertNotNull; import static org.junit.Assert.assertTrue; import static org.junit.Assert.fail; import java.io.ByteArrayInputStream; import java.io.IOException; import java.util.List; import org.apache.http.HttpResponse; import org.apache.http.auth.AuthScope; import org.apache.http.client.CredentialsProvider; import org.apache.http.client.methods.HttpPatch; import org.apache.http.entity.BasicHttpEntity; import org.junit.After; import org.junit.Before; import org.junit.Ignore; import org.junit.Test; import com.gargoylesoftware.htmlunit.DefaultCredentialsProvider; import com.gargoylesoftware.htmlunit.FailingHttpStatusCodeException; import com.gargoylesoftware.htmlunit.IncorrectnessListener; import com.gargoylesoftware.htmlunit.NicelyResynchronizingAjaxController; import com.gargoylesoftware.htmlunit.Page; import com.gargoylesoftware.htmlunit.SilentCssErrorHandler; import com.gargoylesoftware.htmlunit.WebClient; import com.gargoylesoftware.htmlunit.html.DomAttr; import com.gargoylesoftware.htmlunit.html.DomText; import com.gargoylesoftware.htmlunit.html.HtmlButton; import com.gargoylesoftware.htmlunit.html.HtmlElement; import com.gargoylesoftware.htmlunit.html.HtmlFileInput; import com.gargoylesoftware.htmlunit.html.HtmlForm; import com.gargoylesoftware.htmlunit.html.HtmlInput; import com.gargoylesoftware.htmlunit.html.HtmlPage; import com.gargoylesoftware.htmlunit.html.HtmlSelect; import com.gargoylesoftware.htmlunit.html.HtmlTextArea; /** * <p>FedoraHtmlResponsesIT class.</p> * * @author cbeer */ public class FedoraHtmlResponsesIT extends AbstractResourceIT { private WebClient webClient; private WebClient javascriptlessWebClient; @Before public void setUp() { webClient = getDefaultWebClient(); javascriptlessWebClient = getDefaultWebClient(); javascriptlessWebClient.getOptions().setJavaScriptEnabled(false); } @After public void cleanUp() { webClient.close(); javascriptlessWebClient.close(); } @Test public void testDescribeHtml() throws IOException { final HtmlPage page = webClient.getPage(serverAddress); ((HtmlElement) page.getFirstByXPath("//h4[text()='Properties']")).click(); checkForHeaderBranding(page); final String namespaceLabel = page.getFirstByXPath("//span[@title='" + REPOSITORY_NAMESPACE + "']/text()") .toString(); assertEquals("Expected to find namespace URIs displayed as their prefixes", "fedora:", namespaceLabel); } @Test public void testCreateNewNodeWithProvidedId() throws IOException { createAndVerifyObjectWithIdFromRootPage(randomUUID().toString()); } private HtmlPage createAndVerifyObjectWithIdFromRootPage(final String pid) throws IOException { final HtmlPage page = webClient.getPage(serverAddress); final HtmlForm form = (HtmlForm) page.getElementById("action_create"); final HtmlSelect type = (HtmlSelect) page.getElementById("new_mixin"); type.getOptionByValue("container").setSelected(true); final HtmlInput new_id = (HtmlInput) page.getElementById("new_id"); new_id.setValueAttribute(pid); final HtmlButton button = form.getFirstByXPath("button"); button.click(); try { final HtmlPage page1 = webClient.getPage(serverAddress + pid); assertEquals("Page had wrong title!", serverAddress + pid, page1.getTitleText()); return page1; } catch (final FailingHttpStatusCodeException e) { fail("Did not successfully retrieve created page! Got HTTP code: " + e.getStatusCode()); return null; } } @Test public void testCreateNewNodeWithGeneratedId() throws IOException { final HtmlPage page = webClient.getPage(serverAddress); final HtmlForm form = (HtmlForm) page.getElementById("action_create"); final HtmlSelect type = (HtmlSelect) page.getElementById("new_mixin"); type.getOptionByValue("container").setSelected(true); final HtmlButton button = form.getFirstByXPath("button"); button.click(); final HtmlPage page1 = javascriptlessWebClient.getPage(serverAddress); assertTrue("Didn't see new information in page!", !page1.asText().equals(page.asText())); } @Test @Ignore("The htmlunit web client can't handle the HTML5 file API") public void testCreateNewDatastream() throws IOException { final String pid = randomUUID().toString(); // can't do this with javascript, because HTMLUnit doesn't speak the HTML5 file api final HtmlPage page = webClient.getPage(serverAddress); final HtmlForm form = (HtmlForm) page.getElementById("action_create"); final HtmlInput slug = form.getInputByName("slug"); slug.setValueAttribute(pid); final HtmlSelect type = (HtmlSelect) page.getElementById("new_mixin"); type.getOptionByValue("binary").setSelected(true); final HtmlFileInput fileInput = (HtmlFileInput) page.getElementById("datastream_payload"); fileInput.setData("abcdef".getBytes()); fileInput.setContentType("application/pdf"); final HtmlButton button = form.getFirstByXPath("button"); button.click(); final HtmlPage page1 = javascriptlessWebClient.getPage(serverAddress + pid); assertEquals(serverAddress + pid, page1.getTitleText()); } @Test public void testCreateNewDatastreamWithNoFileAttached() throws IOException { final String pid = randomUUID().toString(); // can't do this with javascript, because HTMLUnit doesn't speak the HTML5 file api final HtmlPage page = webClient.getPage(serverAddress); final HtmlForm form = (HtmlForm) page.getElementById("action_create"); final HtmlInput slug = form.getInputByName("slug"); slug.setValueAttribute(pid); final HtmlSelect type = (HtmlSelect) page.getElementById("new_mixin"); type.getOptionByValue("binary").setSelected(true); final HtmlButton button = form.getFirstByXPath("button"); button.click(); javascriptlessWebClient.getOptions().setThrowExceptionOnFailingStatusCode(false); final int status = javascriptlessWebClient.getPage(serverAddress + pid).getWebResponse().getStatusCode(); assertEquals(NOT_FOUND.getStatusCode(), status); } @Test public void testCreateNewObjectAndDeleteIt() throws IOException { final boolean throwExceptionOnFailingStatusCode = webClient.getOptions() .isThrowExceptionOnFailingStatusCode(); webClient.getOptions().setThrowExceptionOnFailingStatusCode(false); final String pid = createNewObject(); final HtmlPage page = webClient.getPage(serverAddress + pid); final HtmlForm action_delete = page.getFormByName("action_delete"); action_delete.getButtonByName("delete-button").click(); webClient.waitForBackgroundJavaScript(1000); webClient.waitForBackgroundJavaScriptStartingBefore(10000); final Page page2 = webClient.getPage(serverAddress + pid); assertEquals("Didn't get a 410!", 410, page2.getWebResponse().getStatusCode()); webClient.getOptions().setThrowExceptionOnFailingStatusCode(throwExceptionOnFailingStatusCode); } /** * This test walks through the steps for creating an object, setting some * metadata, creating a version, updating that metadata, viewing the * version history to find that old version. * * @throws IOException exception thrown during this function */ @Ignore @Test public void testVersionCreationAndNavigation() throws IOException { final String pid = randomUUID().toString(); createAndVerifyObjectWithIdFromRootPage(pid); final String updateSparql = "PREFIX dc: <http://purl.org/dc/elements/1.1/>\n" + "PREFIX fedora: <" + REPOSITORY_NAMESPACE + ">\n" + "\n" + "INSERT DATA { <> fedoraconfig:versioningPolicy \"auto-version\" ; dc:title \"Object Title\". }"; postSparqlUpdateUsingHttpClient(updateSparql, pid); final HtmlPage objectPage = javascriptlessWebClient.getPage(serverAddress + pid); assertEquals("Auto versioning should be set.", "auto-version", objectPage .getFirstByXPath( "//span[@property='" + FEDORA_CONFIG_NAMESPACE + "versioningPolicy']/text()") .toString()); assertEquals("Title should be set.", "Object Title", objectPage .getFirstByXPath("//span[@property='http://purl.org/dc/elements/1.1/title']/text()").toString()); final String updateSparql2 = "PREFIX dc: <http://purl.org/dc/elements/1.1/>\n" + "\n" + "DELETE { <> dc:title ?t }\n" + "INSERT { <> dc:title \"Updated Title\" }" + "WHERE { <> dc:title ?t }"; postSparqlUpdateUsingHttpClient(updateSparql2, pid); final HtmlPage versions = javascriptlessWebClient.getPage(serverAddress + pid + "/fcr:versions"); final List<DomAttr> versionLinks = castList(versions.getByXPath("//a[@class='version_link']/@href")); assertEquals("There should be two revisions.", 2, versionLinks.size()); // get the labels // will look like "Version from 2013-00-0T00:00:00.000Z" // and will sort chronologically based on a String comparison final List<DomText> labels = castList(versions.getByXPath("//a[@class='version_link']/text()")); final boolean chronological = labels.get(0).asText().compareTo(labels.get(1).toString()) < 0; logger.debug("Versions {} in chronological order: {}, {}", chronological ? "are" : "are not", labels.get(0).asText(), labels.get(1).asText()); final HtmlPage firstRevision = javascriptlessWebClient .getPage(versionLinks.get(chronological ? 0 : 1).getNodeValue()); final List<DomText> v1Titles = castList( firstRevision.getByXPath("//span[@property='http://purl.org/dc/elements/1.1/title']/text()")); final HtmlPage secondRevision = javascriptlessWebClient .getPage(versionLinks.get(chronological ? 1 : 0).getNodeValue()); final List<DomText> v2Titles = castList( secondRevision.getByXPath("//span[@property='http://purl.org/dc/elements/1.1/title']/text()")); assertEquals("Version one should have one title.", 1, v1Titles.size()); assertEquals("Version two should have one title.", 1, v2Titles.size()); assertNotEquals("Each version should have a different title.", v1Titles.get(0), v2Titles.get(0)); assertEquals("First version should be preserved.", "Object Title", v1Titles.get(0).getWholeText()); assertEquals("Second version should be preserved.", "Updated Title", v2Titles.get(0).getWholeText()); } private static void postSparqlUpdateUsingHttpClient(final String sparql, final String pid) throws IOException { final HttpPatch method = new HttpPatch(serverAddress + pid); method.addHeader(CONTENT_TYPE, "application/sparql-update"); final BasicHttpEntity entity = new BasicHttpEntity(); entity.setContent(new ByteArrayInputStream(sparql.getBytes())); method.setEntity(entity); final HttpResponse response = client.execute(method); assertEquals("Expected successful response.", 204, response.getStatusLine().getStatusCode()); } @Test @Ignore public void testCreateNewObjectAndSetProperties() throws IOException { final String pid = createNewObject(); final HtmlPage page = javascriptlessWebClient.getPage(serverAddress + pid); final HtmlForm form = (HtmlForm) page.getElementById("action_sparql_update"); final HtmlTextArea sparql_update_query = (HtmlTextArea) page.getElementById("sparql_update_query"); sparql_update_query.setText("INSERT { <> <info:some-predicate> 'asdf' } WHERE { }"); final HtmlButton button = form.getFirstByXPath("button"); button.click(); final HtmlPage page1 = javascriptlessWebClient.getPage(serverAddress + pid); assertTrue(page1.getElementById("metadata").asText().contains("some-predicate")); } @Test @Ignore("htmlunit can't see links in the HTML5 <nav> element..") public void testSparqlSearch() throws IOException { final HtmlPage page = webClient.getPage(serverAddress); logger.error(page.toString()); page.getAnchorByText("Search").click(); final HtmlForm form = (HtmlForm) page.getElementById("action_sparql_select"); final HtmlTextArea q = form.getTextAreaByName("q"); q.setText("SELECT ?subject WHERE { ?subject a <" + REPOSITORY_NAMESPACE + "Resource> }"); final HtmlButton button = form.getFirstByXPath("button"); button.click(); } private static void checkForHeaderBranding(final HtmlPage page) { assertNotNull(page .getFirstByXPath("//nav[@role='navigation']/div[@class='navbar-header']/a[@class='navbar-brand']")); } private String createNewObject() throws IOException { final String pid = randomUUID().toString(); final HtmlPage page = webClient.getPage(serverAddress); final HtmlForm form = page.getFormByName("action_create"); final HtmlInput slug = form.getInputByName("slug"); slug.setValueAttribute(pid); final HtmlButton button = form.getFirstByXPath("button"); button.click(); webClient.waitForBackgroundJavaScript(1000); webClient.waitForBackgroundJavaScriptStartingBefore(10000); return pid; } private CredentialsProvider getFedoraAdminCredentials() { final CredentialsProvider credentials = new DefaultCredentialsProvider(); credentials.setCredentials(AuthScope.ANY, FEDORA_ADMIN_CREDENTIALS); return credentials; } private WebClient getDefaultWebClient() { final WebClient webClient = new WebClient(FIREFOX_45); webClient.addRequestHeader(ACCEPT, "text/html"); webClient.setCredentialsProvider(getFedoraAdminCredentials()); webClient.waitForBackgroundJavaScript(1000); webClient.waitForBackgroundJavaScriptStartingBefore(10000); webClient.setAjaxController(new NicelyResynchronizingAjaxController()); //Suppress warning from IncorrectnessListener webClient.setIncorrectnessListener(new SuppressWarningIncorrectnessListener()); //Suppress css warning with the silent error handler. webClient.setCssErrorHandler(new SilentCssErrorHandler()); return webClient; } @SuppressWarnings("unchecked") private static <T> List<T> castList(final List<?> l) { return transform(l, x -> (T) x); } private static class SuppressWarningIncorrectnessListener implements IncorrectnessListener { @Override public void notify(final String arg0, final Object arg1) { } } }