Install statistics endpoint #11

Added install endpoint, filter, codecs. Updated dummy data script to insert install records by a configurable flag (which defaults to 0). Added URL parameters + database fields names for install fields.

Change-Id: Ieedc18a738a343f9c34b514bfa1dae69c69d9c7d Signed-off-by: Martin Lowe martin.lowe@eclipse-foundation.org

src/main/java/org/eclipsefoundation/marketplace/dto/codecs/InstallCodec.java

+/* Copyright (c) 2019 Eclipse Foundation and others.
+ * This program and the accompanying materials are made available
+ * under the terms of the Eclipse Public License 2.0
+ * which is available at http://www.eclipse.org/legal/epl-v20.html,
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.eclipsefoundation.marketplace.dto.codecs;
+
+import java.util.UUID;
+
+import org.bson.BsonReader;
+import org.bson.BsonString;
+import org.bson.BsonValue;
+import org.bson.BsonWriter;
+import org.bson.Document;
+import org.bson.codecs.Codec;
+import org.bson.codecs.CollectibleCodec;
+import org.bson.codecs.DecoderContext;
+import org.bson.codecs.EncoderContext;
+import org.eclipsefoundation.marketplace.dto.Install;
+import org.eclipsefoundation.marketplace.namespace.DatabaseFieldNames;
+
+import com.mongodb.MongoClient;
+
+/**
+ * MongoDB codec for transcoding of {@link Install} and {@link Document}
+ * objects. Used when writing or retrieving objects of given type from the
+ * database.
+ * 
+ * @author Martin Lowe
+ */
+public class InstallCodec implements CollectibleCodec<Install> {
+	private final Codec<Document> documentCodec;
+
+	/**
+	 * Creates the codec and initializes the codecs and converters needed to create
+	 * an install from end to end.
+	 */
+	public InstallCodec() {
+		this.documentCodec = MongoClient.getDefaultCodecRegistry().get(Document.class);
+	}
+
+	@Override
+	public void encode(BsonWriter writer, Install value, EncoderContext encoderContext) {
+		Document doc = new Document();
+
+		doc.put(DatabaseFieldNames.DOCID, value.getId());
+		doc.put(DatabaseFieldNames.INSTALL_JAVA_VERSION, value.getJavaVersion());
+		doc.put(DatabaseFieldNames.INSTALL_VERSION, value.getVersion());
+		doc.put(DatabaseFieldNames.INSTALL_LISTING_ID, value.getListingId());
+		doc.put(DatabaseFieldNames.INSTALL_DATE, value.getInstallDate());
+		doc.put(DatabaseFieldNames.ECLIPSE_VERSION, value.getEclipseVersion());
+		doc.put(DatabaseFieldNames.OS, value.getOs());
+		doc.put(DatabaseFieldNames.LOCALE, value.getLocale());
+		documentCodec.encode(writer, doc, encoderContext);
+	}
+
+	@Override
+	public Class<Install> getEncoderClass() {
+		return Install.class;
+	}
+
+	@Override
+	public Install decode(BsonReader reader, DecoderContext decoderContext) {
+		Document document = documentCodec.decode(reader, decoderContext);
+		Install out = new Install();
+		out.setId(document.getString(DatabaseFieldNames.DOCID));
+		out.setJavaVersion(document.getString(DatabaseFieldNames.INSTALL_JAVA_VERSION));
+		out.setVersion(document.getString(DatabaseFieldNames.INSTALL_VERSION));
+		out.setListingId(document.getString(DatabaseFieldNames.INSTALL_LISTING_ID));
+		out.setInstallDate(document.getDate(DatabaseFieldNames.INSTALL_DATE));
+		out.setEclipseVersion(document.getString(DatabaseFieldNames.ECLIPSE_VERSION));
+		out.setLocale(document.getString(DatabaseFieldNames.LOCALE));
+		out.setOs(document.getString(DatabaseFieldNames.OS));
+		return out;
+	}
+
+	@Override
+	public Install generateIdIfAbsentFromDocument(Install document) {
+		if (!documentHasId(document)) {
+			document.setId(UUID.randomUUID().toString());
+		}
+		return document;
+	}
+
+	@Override
+	public boolean documentHasId(Install document) {
+		return document.getId() != null;
+	}
+
+	@Override
+	public BsonValue getDocumentId(Install document) {
+		return new BsonString(document.getId());
+	}
+
+}