1 files changed, 164 insertions, 0 deletions
diff --git a/src/main/java/org/traccar/web/CsvBuilder.java b/src/main/java/org/traccar/web/CsvBuilder.java
new file mode 100644
index 000000000..3fe7e408f
--- /dev/null
+++ b/src/main/java/org/traccar/web/CsvBuilder.java
@@ -0,0 +1,164 @@
+/*
+ * Copyright 2016 Anton Tananaev (anton@traccar.org)
+ * Copyright 2016 Andrey Kunitsyn (andrey@traccar.org)
+ *
+ * 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.
+ */
+package org.traccar.web;
+
+import java.beans.Introspector;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.Comparator;
+import java.util.Date;
+import java.util.Map;
+import java.util.SortedSet;
+import java.util.TreeSet;
+
+import com.fasterxml.jackson.core.JsonProcessingException;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.traccar.Context;
+import org.traccar.helper.DateUtil;
+
+public class CsvBuilder {
+
+    private static final Logger LOGGER = LoggerFactory.getLogger(CsvBuilder.class);
+
+    private static final String LINE_ENDING = "\r\n";
+    private static final String SEPARATOR = ";";
+
+    private StringBuilder builder = new StringBuilder();
+
+    private void addLineEnding() {
+        builder.append(LINE_ENDING);
+    }
+    private void addSeparator() {
+        builder.append(SEPARATOR);
+    }
+
+    private SortedSet<Method> getSortedMethods(Object object) {
+        Method[] methodArray = object.getClass().getMethods();
+        SortedSet<Method> methods = new TreeSet<>(new Comparator<Method>() {
+            @Override
+            public int compare(Method m1, Method m2) {
+                if (m1.getName().equals("getAttributes") && !m1.getName().equals(m2.getName())) {
+                    return 1;
+                }
+                if (m2.getName().equals("getAttributes") && !m1.getName().equals(m2.getName())) {
+                    return -1;
+                }
+                return m1.getName().compareTo(m2.getName());
+            }
+        });
+        methods.addAll(Arrays.asList(methodArray));
+        return methods;
+    }
+
+    public void addLine(Object object) {
+
+        SortedSet<Method> methods = getSortedMethods(object);
+
+        for (Method method : methods) {
+            if (method.getName().startsWith("get") && method.getParameterTypes().length == 0) {
+                try {
+                    if (method.getReturnType().equals(boolean.class)) {
+                        builder.append(method.invoke(object));
+                        addSeparator();
+                    } else if (method.getReturnType().equals(int.class)) {
+                        builder.append(method.invoke(object));
+                        addSeparator();
+                    } else if (method.getReturnType().equals(long.class)) {
+                        builder.append(method.invoke(object));
+                        addSeparator();
+                    } else if (method.getReturnType().equals(double.class)) {
+                        builder.append(method.invoke(object));
+                        addSeparator();
+                    } else if (method.getReturnType().equals(String.class)) {
+                        builder.append((String) method.invoke(object));
+                        addSeparator();
+                    } else if (method.getReturnType().equals(Date.class)) {
+                        Date value = (Date) method.invoke(object);
+                        builder.append(DateUtil.formatDate(value));
+                        addSeparator();
+                    } else if (method.getReturnType().equals(Map.class)) {
+                        Map value = (Map) method.invoke(object);
+                        if (value != null) {
+                            try {
+                                String map = Context.getObjectMapper().writeValueAsString(value);
+                                map = map.replaceAll("[\\{\\}\"]", "");
+                                map = map.replaceAll(",", " ");
+                                builder.append(map);
+                                addSeparator();
+                            } catch (JsonProcessingException e) {
+                                LOGGER.warn("Map JSON formatting error", e);
+                            }
+                        }
+                    }
+                } catch (IllegalAccessException | InvocationTargetException error) {
+                    LOGGER.warn("Reflection invocation error", error);
+                }
+            }
+        }
+        addLineEnding();
+    }
+
+    public void addHeaderLine(Object object) {
+
+        SortedSet<Method> methods = getSortedMethods(object);
+
+        for (Method method : methods) {
+            if (method.getName().startsWith("get") && method.getParameterTypes().length == 0) {
+                String name = Introspector.decapitalize(method.getName().substring(3));
+                if (!name.equals("class")) {
+                    builder.append(name);
+                    addSeparator();
+                }
+            }
+        }
+        addLineEnding();
+    }
+
+    public void addArray(Collection<?> array) {
+        for (Object object : array) {
+            switch (object.getClass().getSimpleName().toLowerCase()) {
+                case "string":
+                    builder.append(object.toString());
+                    addLineEnding();
+                    break;
+                case "long":
+                    builder.append((long) object);
+                    addLineEnding();
+                    break;
+                case "double":
+                    builder.append((double) object);
+                    addLineEnding();
+                    break;
+                case "boolean":
+                    builder.append((boolean) object);
+                    addLineEnding();
+                    break;
+                default:
+                    addLine(object);
+                    break;
+            }
+        }
+    }
+
+    public String build() {
+        return builder.toString();
+    }
+
+}