import org.slf4j.LoggerFactory;
/**
- * The Class DefaultPfDao is an JPA implementation of the {@link PfDao} class for Policy Framework
- * concepts ({@link PfConcept}). It uses the default JPA implementation in the javax
- * {@link Persistence} class.
+ * The Class DefaultPfDao is an JPA implementation of the {@link PfDao} class for Policy Framework concepts
+ * ({@link PfConcept}). It uses the default JPA implementation in the javax {@link Persistence} class.
*/
public class DefaultPfDao implements PfDao {
private static final Logger LOGGER = LoggerFactory.getLogger(DefaultPfDao.class);
- private static final String SELECT_C_FROM = "SELECT c FROM ";
- private static final String AND_C_KEY_LOCAL_NAME = "' AND c.key.localName='";
- private static final String AND_C_KEY_PARENT_KEY_VERSION = "' AND c.key.parentKeyVersion='";
- private static final String C_WHERE_C_KEY_PARENT_KEY_NAME = " c WHERE c.key.parentKeyName='";
- private static final String AND_C_KEY_VERSION = "' AND c.key.version='";
- private static final String C_WHERE_C_KEY_NAME = " c WHERE c.key.name='";
- private static final String DELETE_FROM = "DELETE FROM ";
+ // @formatter:off
+ private static final String NAME = "name";
+ private static final String VERSION = "version";
+ private static final String PARENT_NAME = "parentname";
+ private static final String PARENT_VERSION = "parentversion";
+ private static final String LOCAL_NAME = "localname";
+
+ private static final String TABLE_TOKEN = "__TABLE__";
+
+ private static final String DELETE_FROM_TABLE = "DELETE FROM __TABLE__ c";
+
+ private static final String SELECT_FROM_TABLE = "SELECT c FROM __TABLE__ c";
+
+ private static final String WHERE = " WHERE ";
+ private static final String AND = " AND ";
+
+ private static final String NAME_FILTER = "c.key.name = :name";
+ private static final String VERSION_FILTER = "c.key.version = :version";
+ private static final String PARENT_NAME_FILTER = "c.key.parentKeyName = :parentname";
+ private static final String PARENT_VERSION_FILTER = "c.key.parentKeyVersion = :parentversion";
+ private static final String LOCAL_NAME_FILTER = "c.key.localName = :localname";
+ private static final String MAX_VERISON_FILTER = "c.key.version = (SELECT MAX(c.key.version) FROM __TABLE__ c)";
+
+ private static final String DELETE_BY_CONCEPT_KEY =
+ DELETE_FROM_TABLE + WHERE + NAME_FILTER + AND + VERSION_FILTER;
+
+ private static final String DELETE_BY_REFERENCE_KEY =
+ DELETE_FROM_TABLE + WHERE + PARENT_NAME_FILTER + AND + PARENT_VERSION_FILTER + AND + LOCAL_NAME_FILTER;
+
+ private static final String SELECT_ALL_FOR_PARENT =
+ SELECT_FROM_TABLE + WHERE + PARENT_NAME_FILTER + AND + PARENT_VERSION_FILTER;
+
+ private static final String SELECT_ALL_VERSIONS = SELECT_FROM_TABLE + WHERE + NAME_FILTER;
+
+ private static final String SELECT_LATEST_VERSION =
+ SELECT_FROM_TABLE + WHERE + NAME_FILTER + AND + MAX_VERISON_FILTER;
+
+ private static final String SELECT_LATEST_VERSIONS =
+ "SELECT c FROM __TABLE__ c WHERE c.key.version = (SELECT MAX(c.key.version) FROM __TABLE__ c)";
+
+ private static final String SELECT_BY_CONCEPT_KEY =
+ SELECT_FROM_TABLE + WHERE + NAME_FILTER + AND + VERSION_FILTER;
+
+ private static final String SELECT_BY_REFERENCE_KEY =
+ SELECT_FROM_TABLE + WHERE + PARENT_NAME_FILTER + AND + PARENT_VERSION_FILTER + AND + LOCAL_NAME_FILTER;
+ // @formatter:on
// Entity manager for JPA
private EntityManagerFactory emf = null;
}
final EntityManager mg = getEntityManager();
try {
+ // @formatter:off
mg.getTransaction().begin();
- mg.createQuery(DELETE_FROM + someClass.getSimpleName() + C_WHERE_C_KEY_NAME + key.getName()
- + AND_C_KEY_VERSION + key.getVersion() + "'", someClass).executeUpdate();
+ mg.createQuery(setQueryTable(DELETE_BY_CONCEPT_KEY, someClass), someClass)
+ .setParameter(NAME, key.getName())
+ .setParameter("version", key.getVersion())
+ .executeUpdate();
mg.getTransaction().commit();
+ // @formatter:on
} finally {
mg.close();
}
}
final EntityManager mg = getEntityManager();
try {
+ // @formatter:off
mg.getTransaction().begin();
- mg.createQuery(DELETE_FROM + someClass.getSimpleName() + C_WHERE_C_KEY_PARENT_KEY_NAME
- + key.getParentKeyName() + AND_C_KEY_PARENT_KEY_VERSION + key.getParentKeyVersion()
- + AND_C_KEY_LOCAL_NAME + key.getLocalName() + "'", someClass).executeUpdate();
+ mg.createQuery(setQueryTable(DELETE_BY_REFERENCE_KEY, someClass), someClass)
+ .setParameter(PARENT_NAME, key.getParentKeyName())
+ .setParameter(PARENT_VERSION, key.getParentKeyVersion())
+ .setParameter(LOCAL_NAME, key.getLocalName())
+ .executeUpdate();
mg.getTransaction().commit();
+ // @formatter:on
} finally {
mg.close();
}
int deletedCount = 0;
final EntityManager mg = getEntityManager();
try {
+ // @formatter:off
mg.getTransaction().begin();
for (final PfConceptKey key : keys) {
- deletedCount += mg.createQuery(DELETE_FROM + someClass.getSimpleName() + C_WHERE_C_KEY_NAME
- + key.getName() + AND_C_KEY_VERSION + key.getVersion() + "'", someClass).executeUpdate();
+ deletedCount += mg.createQuery(setQueryTable(DELETE_BY_CONCEPT_KEY, someClass), someClass)
+ .setParameter(NAME, key.getName())
+ .setParameter("version", key.getVersion())
+ .executeUpdate();
}
mg.getTransaction().commit();
+ // @formatter:on
} finally {
mg.close();
}
int deletedCount = 0;
final EntityManager mg = getEntityManager();
try {
+ // @formatter:off
mg.getTransaction().begin();
for (final PfReferenceKey key : keys) {
- deletedCount +=
- mg.createQuery(
- DELETE_FROM + someClass.getSimpleName() + C_WHERE_C_KEY_PARENT_KEY_NAME
- + key.getParentKeyName() + AND_C_KEY_PARENT_KEY_VERSION
- + key.getParentKeyVersion() + AND_C_KEY_LOCAL_NAME + key.getLocalName() + "'",
- someClass).executeUpdate();
+ deletedCount += mg.createQuery(setQueryTable(DELETE_BY_REFERENCE_KEY, someClass), someClass)
+ .setParameter(PARENT_NAME, key.getParentKeyName())
+ .setParameter(PARENT_VERSION, key.getParentKeyVersion())
+ .setParameter(LOCAL_NAME, key.getLocalName())
+ .executeUpdate();
}
mg.getTransaction().commit();
+ // @formatter:on
} finally {
mg.close();
}
final EntityManager mg = getEntityManager();
try {
mg.getTransaction().begin();
- mg.createQuery(DELETE_FROM + someClass.getSimpleName() + " c ", someClass).executeUpdate();
+ mg.createQuery(setQueryTable(DELETE_FROM_TABLE, someClass), someClass).executeUpdate();
mg.getTransaction().commit();
} finally {
mg.close();
}
}
+ @Override
+ public <T extends PfConcept> List<T> getFiltered(Class<T> someClass, PfConceptKey key) {
+ if (key.getName() == null) {
+ return getAll(someClass);
+ }
+
+ if (key.getVersion() == null) {
+ return getAllVersions(someClass, key.getName());
+ }
+
+ T foundConcept = get(someClass, key);
+
+ return (foundConcept == null ? Collections.emptyList() : Collections.singletonList(foundConcept));
+ }
+
@Override
public <T extends PfConcept> T get(final Class<T> someClass, final PfConceptKey key) {
if (someClass == null) {
}
final EntityManager mg = getEntityManager();
try {
- return mg.createQuery(SELECT_C_FROM + someClass.getSimpleName() + " c", someClass).getResultList();
+ return mg.createQuery(setQueryTable(SELECT_FROM_TABLE, someClass), someClass).getResultList();
} finally {
mg.close();
}
}
final EntityManager mg = getEntityManager();
try {
- return mg
- .createQuery(
- SELECT_C_FROM + someClass.getSimpleName() + C_WHERE_C_KEY_PARENT_KEY_NAME
- + parentKey.getName() + AND_C_KEY_PARENT_KEY_VERSION + parentKey.getVersion() + "'",
- someClass)
+ // @formatter:off
+ return mg.createQuery(setQueryTable(SELECT_ALL_FOR_PARENT, someClass), someClass)
+ .setParameter(PARENT_NAME, parentKey.getName())
+ .setParameter(PARENT_VERSION, parentKey.getVersion())
.getResultList();
+ // @formatter:on
} finally {
mg.close();
}
}
@Override
- public <T extends PfConcept> T getConcept(final Class<T> someClass, final PfConceptKey key) {
- if (someClass == null || key == null) {
- return null;
+ public <T extends PfConcept> List<T> getAllVersions(final Class<T> someClass, final String conceptName) {
+ if (someClass == null || conceptName == null) {
+ return Collections.emptyList();
+ }
+ final EntityManager mg = getEntityManager();
+ try {
+ // @formatter:off
+ return mg.createQuery(setQueryTable(SELECT_ALL_VERSIONS, someClass), someClass)
+ .setParameter(NAME, conceptName)
+ .getResultList();
+ // @formatter:on
+ } finally {
+ mg.close();
+ }
+ }
+
+ @Override
+ public <T extends PfConcept> List<T> getLatestVersions(final Class<T> someClass) {
+ if (someClass == null) {
+ return Collections.emptyList();
}
final EntityManager mg = getEntityManager();
List<T> ret;
try {
- ret = mg.createQuery(SELECT_C_FROM + someClass.getSimpleName() + C_WHERE_C_KEY_NAME + key.getName()
- + AND_C_KEY_VERSION + key.getVersion() + "'", someClass).getResultList();
+ // @formatter:off
+ return mg.createQuery(setQueryTable(SELECT_LATEST_VERSIONS, someClass), someClass)
+ .getResultList();
+ // @formatter:on
} finally {
mg.close();
}
- if (ret == null || ret.isEmpty()) {
+ }
+
+ @Override
+ public <T extends PfConcept> T getLatestVersion(final Class<T> someClass, final String conceptName) {
+ if (someClass == null || conceptName == null) {
return null;
}
- if (ret.size() > 1) {
- throw new IllegalArgumentException("More than one result was returned for search for " + someClass
- + " with key " + key.getId() + ": " + ret);
+ final EntityManager mg = getEntityManager();
+ List<T> ret;
+ try {
+ // @formatter:off
+ ret = mg.createQuery(setQueryTable(SELECT_LATEST_VERSION, someClass), someClass)
+ .setParameter(NAME, conceptName)
+ .getResultList();
+ // @formatter:on
+ } finally {
+ mg.close();
}
- return ret.get(0);
+
+ return getSingleResult(someClass, conceptName, ret);
}
@Override
- public <T extends PfConcept> T getConcept(final Class<T> someClass, final PfReferenceKey key) {
+ public <T extends PfConcept> T getConcept(final Class<T> someClass, final PfConceptKey key) {
if (someClass == null || key == null) {
return null;
}
final EntityManager mg = getEntityManager();
List<T> ret;
try {
- ret = mg.createQuery(SELECT_C_FROM + someClass.getSimpleName() + C_WHERE_C_KEY_PARENT_KEY_NAME
- + key.getParentKeyName() + AND_C_KEY_PARENT_KEY_VERSION + key.getParentKeyVersion()
- + AND_C_KEY_LOCAL_NAME + key.getLocalName() + "'", someClass).getResultList();
+ // @formatter:off
+ ret = mg.createQuery(setQueryTable(SELECT_BY_CONCEPT_KEY, someClass), someClass)
+ .setParameter(NAME, key.getName())
+ .setParameter(VERSION, key.getVersion())
+ .getResultList();
+ // @formatter:on
} finally {
mg.close();
}
- if (ret == null || ret.isEmpty()) {
+
+ return getSingleResult(someClass, key.getId(), ret);
+ }
+
+ @Override
+ public <T extends PfConcept> T getConcept(final Class<T> someClass, final PfReferenceKey key) {
+ if (someClass == null || key == null) {
return null;
}
- if (ret.size() > 1) {
- throw new IllegalArgumentException("More than one result was returned for search for " + someClass
- + " with key " + key.getId() + ": " + ret);
+ final EntityManager mg = getEntityManager();
+ List<T> ret;
+ try {
+ // @formatter:off
+ ret = mg.createQuery(setQueryTable(SELECT_BY_REFERENCE_KEY, someClass), someClass)
+ .setParameter(PARENT_NAME, key.getParentKeyName())
+ .setParameter(PARENT_VERSION, key.getParentKeyVersion())
+ .setParameter(LOCAL_NAME, key.getLocalName())
+ .getResultList();
+ // @formatter:on
+ } finally {
+ mg.close();
}
- return ret.get(0);
+
+ return getSingleResult(someClass, key.getId(), ret);
}
@Override
}
return size;
}
+
+ /**
+ * Add the table to a query string.
+ *
+ * @param queryString the query string
+ * @param tableClass the class name of the table
+ * @return the updated query string
+ */
+ private <T extends PfConcept> String setQueryTable(final String queryString, final Class<T> tableClass) {
+ return queryString.replaceAll(TABLE_TOKEN, tableClass.getSimpleName());
+ }
+
+ /**
+ * Check that a query returned one and only one entry and return that entry.
+ *
+ * @param someClass the class being searched for
+ * @param conceptName the concept name being searched for
+ * @param resultList the result list returned by the query
+ * @return the single unique result
+ */
+ private <T extends PfConcept> T getSingleResult(final Class<T> someClass, final String searchFilter, List<T> ret) {
+ if (ret == null || ret.isEmpty()) {
+ return null;
+ }
+ if (ret.size() > 1) {
+ throw new IllegalArgumentException("More than one result was returned query on " + someClass
+ + " with filter " + searchFilter + ": " + ret);
+ }
+ return ret.get(0);
+ }
}
Code Review / policy / models.git / blobdiff