update config modal and improved user property handling

src/main/java/io/jenkins/plugins/monitoring/MonitorConfigurationProperty.java

@@ -0,0 +1,175 @@
+package io.jenkins.plugins.monitoring;
+
+import edu.umd.cs.findbugs.annotations.NonNull;
+import hudson.Extension;
+import hudson.model.Saveable;
+import hudson.model.User;
+import hudson.model.UserProperty;
+import hudson.model.UserPropertyDescriptor;
+
+import java.io.IOException;
+import java.util.*;
+
+/**
+ * A {@link UserProperty} to store the json configuration per user as property.
+ *
+ * @author Simon Symhoven
+ */
+public class MonitorConfigurationProperty extends UserProperty implements Saveable {
+
+    private final Collection<MonitorConfiguration> configurations;
+
+    /**
+     * The id for the default configuration.
+     */
+    public static final String DEFAULT_ID = "default";
+
+    /**
+     * Creates a new {@link MonitorConfigurationProperty}.
+     */
+    public MonitorConfigurationProperty(List<MonitorConfiguration> configurations) {
+        this.configurations = configurations;
+    }
+
+    public Collection<MonitorConfiguration> getConfigurations() {
+        return configurations;
+    }
+
+    /**
+     * Get a {@link MonitorConfiguration} by its id.
+     *
+     * @param id
+     *          the id of the {@link MonitorConfiguration} to get.
+     *
+     * @return
+     *          the {@link MonitorConfiguration} or default if id does not exist on {@link MonitorConfigurationProperty}.
+     */
+    public MonitorConfiguration getConfiguration(String id) {
+        return getConfigurations().stream()
+                .filter(monitorConfiguration -> monitorConfiguration.getId().equals(id))
+                .findFirst()
+                .orElse(getConfigurations()
+                        .stream()
+                        .filter(monitorConfiguration -> monitorConfiguration.getId().equals(DEFAULT_ID))
+                        .findFirst().get());
+    }
+
+    /**
+     * Updates an existing {@link MonitorConfiguration}.
+     *
+     * @param id
+     *          the id of the {@link MonitorConfiguration} to update.
+     *
+     * @param config
+     *          the config string to update.
+     */
+    public void createOrUpdateConfiguration(String id, String config) {
+        MonitorConfiguration property = getConfigurations().stream()
+                .filter(monitorConfiguration -> monitorConfiguration.getId().equals(id))
+                .findFirst().orElse(null);
+
+        if (property == null) {
+            getConfigurations().add(new MonitorConfiguration(id, config));
+        }
+        else {
+            property.setConfig(config);
+        }
+
+        try {
+            save();
+        }
+        catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
+
+    /**
+     * Removes a configuration from configurations list.
+     *
+     * @param id
+     *              the id of configuration to remove.
+     *
+     */
+    public void removeConfiguration(String id) {
+        getConfigurations().remove(getConfiguration(id));
+
+        try {
+            save();
+        }
+        catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
+
+    /**
+     * Gets the {@link MonitorConfigurationProperty} for current user.
+     *
+     * @return
+     *          the {@link MonitorConfigurationProperty} as {@link Optional}.
+     */
+    public static Optional<MonitorConfigurationProperty> forCurrentUser() {
+        final User current = User.current();
+        return current == null ? Optional.empty() : Optional.of(current.getProperty(MonitorConfigurationProperty.class));
+    }
+
+    @Override
+    public void save() throws IOException {
+        user.save();
+    }
+
+    /**
+     * The property class to store. Each {@link MonitorConfiguration} has an id and a config (json string).
+     */
+    public static class MonitorConfiguration {
+
+        private final String id;
+        private String config;
+
+        /**
+         * Creates a {@link MonitorConfiguration}.
+         *
+         * @param id
+         *          the id of the {@link MonitorConfiguration}.
+         *
+         * @param config
+         *          the config of the {@link MonitorConfiguration}.
+         */
+        public MonitorConfiguration(String id, String config) {
+            this.id = id;
+            this.config = config;
+        }
+
+        public String getId() {
+            return id;
+        }
+
+        public String getConfig() {
+            return config;
+        }
+
+        public void setConfig(String config) {
+            this.config = config;
+        }
+
+    }
+
+    /**
+     * A {@link UserPropertyDescriptor} for the {@link MonitorConfigurationProperty}.
+     */
+    @Extension
+    public static class MonitorPropertyDescriptor extends UserPropertyDescriptor {
+
+        @Override
+        public UserProperty newInstance(User user) {
+            return new MonitorConfigurationProperty(new ArrayList<>());
+        }
+
+        @NonNull
+        @Override
+        public String getDisplayName() {
+            return "Pull Request Monitoring";
+        }
+
+    }
+
+}