X-Git-Url: https://gerrit.o-ran-sc.org/r/gitweb?a=blobdiff_plain;f=dashboard%2Fwebapp-backend%2Fsrc%2Fmain%2Fjava%2Forg%2Foransc%2Fric%2Fportal%2Fdashboard%2FDashboardUserManager.java;fp=dashboard%2Fwebapp-backend%2Fsrc%2Fmain%2Fjava%2Forg%2Foransc%2Fric%2Fportal%2Fdashboard%2FDashboardUserManager.java;h=6358256f4b8a355f33d78462fd7e81e81711796f;hb=64a5e9470799236f0af4ce2df98f77c94eb1bed3;hp=0000000000000000000000000000000000000000;hpb=a0180adc6a1e1ec09472549596428b70d48db3fc;p=portal%2Fric-dashboard.git

diff --git a/dashboard/webapp-backend/src/main/java/org/oransc/ric/portal/dashboard/DashboardUserManager.java b/dashboard/webapp-backend/src/main/java/org/oransc/ric/portal/dashboard/DashboardUserManager.java
new file mode 100644
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--- /dev/null
+++ b/dashboard/webapp-backend/src/main/java/org/oransc/ric/portal/dashboard/DashboardUserManager.java
@@ -0,0 +1,162 @@
+/*-
+ * ========================LICENSE_START=================================
+ * O-RAN-SC
+ * %%
+ * Copyright (C) 2019 AT&T Intellectual Property
+ * %%
+ * 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.
+ * ========================LICENSE_END===================================
+ */
+package org.oransc.ric.portal.dashboard;
+
+import java.io.File;
+import java.io.IOException;
+import java.lang.invoke.MethodHandles;
+import java.nio.file.Files;
+import java.util.ArrayList;
+import java.util.List;
+
+import org.onap.portalsdk.core.onboarding.exception.PortalAPIException;
+import org.onap.portalsdk.core.restful.domain.EcompUser;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.fasterxml.jackson.core.type.TypeReference;
+import com.fasterxml.jackson.databind.ObjectMapper;
+
+/**
+ * Provides simple user-management services.
+ * 
+ * This first implementation serializes user details to a file.
+ * 
+ * Migrate to a database someday?
+ */
+public class DashboardUserManager {
+
+	private static final Logger logger = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
+
+	// This default value is only useful for development and testing.
+	public static final String USER_FILE_PATH = "dashboard-users.json";
+
+	private final File userFile;
+	private final List<EcompUser> users;
+
+	/**
+	 * Development/test-only constructor that uses default file path.
+	 * 
+	 * @param clear
+	 *                  If true, start empty and remove any existing file.
+	 * 
+	 * @throws IOException
+	 *                         On file error
+	 */
+	public DashboardUserManager(boolean clear) throws IOException {
+		this(USER_FILE_PATH);
+		if (clear) {
+			logger.debug("ctor: removing file {}", userFile.getAbsolutePath());
+			File f = new File(DashboardUserManager.USER_FILE_PATH);
+			if (f.exists())
+				Files.delete(f.toPath());
+			users.clear();
+		}
+	}
+
+	/**
+	 * Constructur that accepts a file path
+	 * 
+	 * @param userFilePath
+	 *                         File path
+	 * @throws IOException
+	 *                         If file cannot be read
+	 */
+	public DashboardUserManager(final String userFilePath) throws IOException {
+		logger.debug("ctor: userfile {}", userFilePath);
+		if (userFilePath == null)
+			throw new IllegalArgumentException("Missing or empty user file property");
+		userFile = new File(userFilePath);
+		logger.debug("ctor: managing users in file {}", userFile.getAbsolutePath());
+		if (userFile.exists()) {
+			final ObjectMapper mapper = new ObjectMapper();
+			users = mapper.readValue(userFile, new TypeReference<List<EcompUser>>() {
+			});
+		} else {
+			users = new ArrayList<>();
+		}
+	}
+
+	/**
+	 * Gets the current users.
+	 * 
+	 * @return List of EcompUser objects, possibly empty
+	 */
+	public List<EcompUser> getUsers() {
+		return this.users;
+	}
+
+	/**
+	 * Gets the user with the specified login Id
+	 * 
+	 * @param loginId
+	 *                    Desired login Id
+	 * @return User object; null if Id is not known
+	 */
+	public EcompUser getUser(String loginId) {
+		for (EcompUser u : this.users) {
+			if (u.getLoginId().equals(loginId)) {
+				logger.debug("getUser: match on {}", loginId);
+				return u;
+			}
+		}
+		logger.debug("getUser: no match on {}", loginId);
+		return null;
+	}
+
+	private void saveUsers() throws IOException {
+		final ObjectMapper mapper = new ObjectMapper();
+		mapper.writeValue(userFile, users);
+	}
+
+	/*
+	 * Allow at most one thread to create a user at one time.
+	 */
+	public synchronized void createUser(EcompUser user) throws PortalAPIException {
+		logger.debug("createUser: loginId {}", user.getLoginId());
+		if (users.contains(user))
+			throw new PortalAPIException("User exists: " + user.getLoginId());
+		users.add(user);
+		try {
+			saveUsers();
+		} catch (Exception ex) {
+			throw new PortalAPIException("Save failed", ex);
+		}
+	}
+
+	/*
+	 * Allow at most one thread to modify a user at one time. We still have
+	 * last-edit-wins of course.
+	 */
+	public synchronized void updateUser(String loginId, EcompUser user) throws PortalAPIException {
+		logger.debug("editUser: loginId {}", loginId);
+		int index = users.indexOf(user);
+		if (index < 0)
+			throw new PortalAPIException("User does not exist: " + user.getLoginId());
+		users.remove(index);
+		users.add(user);
+		try {
+			saveUsers();
+		} catch (Exception ex) {
+			throw new PortalAPIException("Save failed", ex);
+		}
+	}
+
+}