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authorChristian Wagner <c.wagner@datentechnik-innovation.com>2015-01-13 16:12:36 +0100
committerThomas Lenz <tlenz@iaik.tugraz.at>2015-06-19 11:07:45 +0200
commitc20d8f3da0b112864130031d39800e60289380d4 (patch)
treee378d9016f46dfe70e8ad49acabc482a04f32eec /id/server/moa-id-commons/src/main/java
parent3ee292090346f27e7e23d4943b74ada281f20552 (diff)
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add raw configuration persistence functionality
some problems: * all tables annotated via '@Table' are created in every database connected * loading of 'Configuration' via Spring isn't pretty at all
Diffstat (limited to 'id/server/moa-id-commons/src/main/java')
-rw-r--r--id/server/moa-id-commons/src/main/java/com/datentechnik/moa/id/conf/persistence/ConfigurationImpl.java162
1 files changed, 162 insertions, 0 deletions
diff --git a/id/server/moa-id-commons/src/main/java/com/datentechnik/moa/id/conf/persistence/ConfigurationImpl.java b/id/server/moa-id-commons/src/main/java/com/datentechnik/moa/id/conf/persistence/ConfigurationImpl.java
new file mode 100644
index 000000000..da2c4b7e6
--- /dev/null
+++ b/id/server/moa-id-commons/src/main/java/com/datentechnik/moa/id/conf/persistence/ConfigurationImpl.java
@@ -0,0 +1,162 @@
+package com.datentechnik.moa.id.conf.persistence;
+
+import java.io.IOException;
+import java.util.List;
+
+import org.springframework.beans.factory.annotation.Required;
+import org.springframework.stereotype.Component;
+
+import com.datentechnik.moa.id.conf.persistence.dal.ConfigProperty;
+import com.datentechnik.moa.id.conf.persistence.dal.ConfigPropertyDao;
+import com.fasterxml.jackson.annotation.PropertyAccessor;
+import com.fasterxml.jackson.annotation.JsonAutoDetect.Visibility;
+import com.fasterxml.jackson.core.JsonParseException;
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.JsonMappingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.SerializationFeature;
+
+/**
+ *
+ *
+ */
+@Component
+public class ConfigurationImpl implements Configuration {
+
+ ConfigPropertyDao configPropertyDao;
+ private JsonMapper mapper = new JsonMapper();
+
+ /**
+ * Sets the {@link ConfigPropertyDao}.
+ * @param configPropertyDao the ConfigPropertyDao
+ */
+ @Required
+ public void setConfigPropertyDao(ConfigPropertyDao configPropertyDao) {
+ this.configPropertyDao = configPropertyDao;
+ }
+
+ @Override
+ public Object get(String key) {
+ // return null if key does not exist
+
+ try {
+ return mapper.deserialize(getPropertyValue(key), null);
+ } catch (Exception e) {
+ return null;
+ }
+ }
+
+ @Override
+ public <T> T get(String key, Class<T> clazz) {
+ // return null if key does not exist
+ ConfigProperty property = configPropertyDao.getProperty(key);
+ if (property != null && property.getValue() != null) {
+ try {
+ return clazz.cast(mapper.deserialize(property.getValue(), clazz));
+ } catch (IOException e) {
+ return null;
+ }
+ } else {
+ return null;
+ }
+ }
+
+ @Override
+ public void set(String key, Object value) {
+
+ ConfigProperty keyValue = new ConfigProperty();
+ keyValue.setKey(key);
+ try {
+ keyValue.setValue(mapper.serialize(value));
+ // System.out.println(">> key - value: " + keyValue.getKey() + " - " + keyValue.getValue() + "\n");
+ configPropertyDao.saveProperty(keyValue);
+
+ } catch (JsonProcessingException e) {
+ // TODO do proper error handling
+ e.printStackTrace();
+ }
+
+ }
+
+ @Override
+ public <T> T get(String key, Class<T> clazz, Object defaultValue) {
+ // TODO complete the method
+ T value = get(key, clazz);
+ if (value != null) {
+ return value;
+ } else {
+ return clazz.cast(defaultValue);
+ }
+ }
+
+ @Override
+ public <T> List<T> getList(String key, Class<T> clazz) {
+ // return empty list if key does not exist
+ // TODO Auto-generated method stub
+
+ return null;
+ }
+
+ private String getPropertyValue(String key) {
+ ConfigProperty property = configPropertyDao.getProperty(key);
+ return property.getValue();
+ }
+
+ /**
+ *
+ *
+ */
+ private class JsonMapper {
+
+ private ObjectMapper mapper = new ObjectMapper();
+
+ public JsonMapper() {
+ this(false);
+ }
+
+ /**
+ *
+ * @param prettyPrint
+ */
+ public JsonMapper(boolean prettyPrint) {
+ mapper.setVisibility(PropertyAccessor.ALL, Visibility.NONE);
+ mapper.setVisibility(PropertyAccessor.GETTER, Visibility.PUBLIC_ONLY);
+ mapper.setVisibility(PropertyAccessor.IS_GETTER, Visibility.PUBLIC_ONLY);
+ if (prettyPrint) {
+ mapper.enable(SerializationFeature.INDENT_OUTPUT);
+ }
+ }
+
+ /**
+ *
+ * @param value
+ * @return
+ * @throws JsonProcessingException
+ */
+ public String serialize(Object value) throws JsonProcessingException {
+ return mapper.writeValueAsString(value);
+ }
+
+ /**
+ *
+ * @param value
+ * @param clazz
+ * @return
+ * @throws JsonParseException
+ * @throws JsonMappingException
+ * @throws IOException
+ */
+ public <T> Object deserialize(String value, Class<T> clazz) throws JsonParseException, JsonMappingException, IOException {
+
+ ObjectMapper mapper = new ObjectMapper();
+ if (clazz != null) {
+ return mapper.readValue(value, clazz);
+ } else {
+ return mapper.readValue(value, Object.class);
+ }
+
+ }
+
+ };
+
+}