1 files changed, 70 insertions, 0 deletions
diff --git a/client/client-editor/src/main/java/org/onap/policy/apex/client/editor/rest/handling/bean/BeanBase.java b/client/client-editor/src/main/java/org/onap/policy/apex/client/editor/rest/handling/bean/BeanBase.java
new file mode 100644
index 000000000..20f8d6f07
--- /dev/null
+++ b/client/client-editor/src/main/java/org/onap/policy/apex/client/editor/rest/handling/bean/BeanBase.java
@@ -0,0 +1,70 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2016-2018 Ericsson. All rights reserved.
+ * ================================================================================
+ * 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.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.apex.client.editor.rest.handling.bean;
+
+import java.lang.reflect.Field;
+import java.lang.reflect.Method;
+
+/**
+ * The base class for Beans.
+ */
+public abstract class BeanBase {
+    // Recurring string constants
+    private static final String PROBLEM_RETRIEVING_FIELD_PREFIX = "Problem retrieving field called ('";
+    private static final String JSON_BEAN_SUFFIX = "') from JSON bean ";
+
+    /**
+     * Gets a named field from the bean.
+     *
+     * @param field the field name
+     * @return the value for the field
+     */
+    public String get(final String field) {
+        // CHECKSTYLE:OFF: MagicNumber
+        // use getter preferably
+        for (final Method method : this.getClass().getMethods()) {
+            if ((method.getName().startsWith("get")) && (method.getName().length() == (field.length() + 3))) {
+                if (method.getName().toLowerCase().endsWith(field.toLowerCase())) {
+                    try {
+                        return (String) method.invoke(this);
+                    } catch (final Exception e) {
+                        throw new IllegalArgumentException(
+                                PROBLEM_RETRIEVING_FIELD_PREFIX + field + JSON_BEAN_SUFFIX + this, e);
+                    }
+                }
+            }
+        }
+        // Use field approach
+        if (field != null) {
+            try {
+                final Field f = this.getClass().getDeclaredField(field);
+                if (f != null) {
+                    f.setAccessible(true);
+                    return (String) (f.get(this));
+                }
+            } catch (final Exception e) {
+                throw new IllegalArgumentException(
+                        PROBLEM_RETRIEVING_FIELD_PREFIX + field + JSON_BEAN_SUFFIX + this, e);
+            }
+        }
+        throw new IllegalArgumentException(PROBLEM_RETRIEVING_FIELD_PREFIX + field + JSON_BEAN_SUFFIX + this);
+    }
+}