我正在将Java捆绑包从CQ 5.6.1迁移到AEM 6.4，该捆绑包在jdk 1.7中工作，
代码使用apache shiro来实现会话的序列化和反序列化，这是保存和读取存储在Cassandra中的会话的代码
当我将其迁移到AEM 6.4（在jdk 1.8中工作）时，它与AEM 5.6.1和6.1（在jdk 1.7中工作）工作良好，代码是 尝试在咬合数组中反序列化会话时在“ method doReadSession”中给出异常
它抛出异常 在方法doReadSession中，它返回“ serializer.deserialize（bytes）”
抛出的异常是
原因：org.apache.shiro.io.SerializationException：无法反序列化参数字节数组。 在org.apache.shiro.io.DefaultSerializer.deserialize（DefaultSerializer.java:82） 在com.xyz.web.platform.common.security.shiro.cassandra.CassandraSessionDAO.doReadSession（CassandraSessionDAO.java:252） 在org.apache.shiro.session.mgt.eis.AbstractSessionDAO.readSession（AbstractSessionDAO.java:168） 在org.apache.shiro.session.mgt.DefaultSessionManager.retrieveSessionFromDataSource（DefaultSessionManager.java:236）
import com.xyz.web.platform.common.security.shiro.session.idgenerator.UUIDSessionIdGenerator;
import com.xyz.web.platform.common.tracelogging.TMTraceLogger;
import java.io.Serializable;
import java.nio.ByteBuffer;
import java.util.Collection;
import java.util.Collections;
import org.apache.shiro.ShiroException;
import org.apache.shiro.io.DefaultSerializer;
import org.apache.shiro.io.Serializer;
import org.apache.shiro.session.Session;
import org.apache.shiro.session.UnknownSessionException;
import org.apache.shiro.session.mgt.SimpleSession;
import org.apache.shiro.session.mgt.eis.AbstractSessionDAO;
import org.apache.shiro.util.Destroyable;
import org.apache.shiro.util.Initializable;
import com.datastax.driver.core.BoundStatement;
import com.datastax.driver.core.Cluster;
import com.datastax.driver.core.ConsistencyLevel;
import com.datastax.driver.core.PreparedStatement;
import com.datastax.driver.core.ResultSet;
import com.datastax.driver.core.Row;
public class CassandraSessionDAO extends AbstractSessionDAO implements Initializable, Destroyable {
private static final TMTraceLogger CASSANDRA_LOGGER = TMTraceLogger
.getLogger("cassandraLogger" + "." + CassandraSessionDAO.class.getName());
private String DEFAULT_CONSISTENCY_LEVEL = ConsistencyLevel.LOCAL_QUORUM.toString();
private static final String DEFAULT_CACHING = "ROWS_ONLY";
private static final String DEFAULT_DATA_CENTER = "DC1";
private String keyspaceName;
private String tableName;
private Cluster cluster;
private Serializer<SimpleSession> serializer;
private String readConsistencyLevel;
private String writeConsistencyLevel;
private String defaultTTL;
private String gc_grace_seconds;
private String caching = DEFAULT_CACHING;
private String dataCenter = DEFAULT_DATA_CENTER;
private PreparedStatement deletePreparedStatement;
private PreparedStatement savePreparedStatement;
private PreparedStatement readPreparedStatement;
private com.datastax.driver.core.Session cassandraSession;
public CassandraSessionDAO() {
setSessionIdGenerator(new UUIDSessionIdGenerator());
this.serializer = new DefaultSerializer<SimpleSession>();
}
private SimpleSession assertSimpleSession(Session session) {
if (!(session instanceof SimpleSession)) {
throw new IllegalArgumentException(CassandraSessionDAO.class.getName() + " implementations only support "
+ SimpleSession.class.getName() + " instances.");
}
return (SimpleSession) session;
}
public Cluster getCluster() {
return cluster;
}
public void setCluster(Cluster cluster) {
this.cluster = cluster;
}
public String getKeyspaceName() {
return keyspaceName;
}
public void setKeyspaceName(String keyspaceName) {
this.keyspaceName = keyspaceName;
}
public String getTableName() {
return tableName;
}
public void setTableName(String tableName) {
this.tableName = tableName;
}
public String getReadConsistencyLevel() {
return readConsistencyLevel;
}
public void setReadConsistencyLevel(String readConsistencyLevel) {
this.readConsistencyLevel = readConsistencyLevel;
}
public String getWriteConsistencyLevel() {
return writeConsistencyLevel;
}
public void setWriteConsistencyLevel(String writeConsistencyLevel) {
this.writeConsistencyLevel = writeConsistencyLevel;
}
public String getDefaultTTL() {
return defaultTTL;
}
public void setDefaultTTL(String defaultTTL) {
this.defaultTTL = defaultTTL;
}
public String getGc_grace_seconds() {
return gc_grace_seconds;
}
public void setGc_grace_seconds(String gc_grace_seconds) {
this.gc_grace_seconds = gc_grace_seconds;
}
public String getCaching() {
return caching;
}
public void setCaching(String caching) {
this.caching = caching;
}
public String getDataCenter() {
return dataCenter;
}
public void setDataCenter(String dataCenter) {
this.dataCenter = dataCenter;
}
public void init() throws ShiroException {
com.datastax.driver.core.Session systemSession = cluster.connect();
boolean create = false;
try {
if (!isKeyspacePresent(systemSession)) {
create = true;
createKeyspace(systemSession);
if (!isKeyspacePresent(systemSession)) {
throw new IllegalStateException("Unable to create keyspace " + keyspaceName);
}
}
} finally {
systemSession.shutdown();
}
cassandraSession = cluster.connect(keyspaceName);
if (create) {
createTable();
}
prepareReadStatement();
prepareSaveStatement();
prepareDeleteStatement();
}
public void destroy() throws Exception {
if (cassandraSession != null) {
cassandraSession.shutdown();
cluster.shutdown();
}
}
protected boolean isKeyspacePresent(com.datastax.driver.core.Session systemSession) {
PreparedStatement ps = systemSession.prepare("select * from system.schema_keyspaces");
BoundStatement bs = new BoundStatement(ps);
ResultSet results = systemSession.execute(bs);
// ResultSet results = systemSession.execute("select * from
// system.schema_keyspaces");
for (Row row : results) {
if (row.getString("keyspace_name").equalsIgnoreCase(keyspaceName)) {
return true;
}
}
return false;
}
protected void createKeyspace(com.datastax.driver.core.Session systemSession) {
String query = "create keyspace " + this.keyspaceName
+ " with replication = {'class' : 'NetworkTopologyStrategy', '" + dataCenter + "': 2};";
systemSession.execute(query);
}
protected void createTable() {
long defaultTTLLong = Long.parseLong(defaultTTL);
long gc_grace_secondsLong = Long.parseLong(gc_grace_seconds);
String query = "CREATE TABLE " + tableName + " ( " + " id varchar PRIMARY KEY, " + " start_ts timestamp, "
+ " stop_ts timestamp, " + " last_access_ts timestamp, " + " timeout bigint, "
+ " expired boolean, " + " host varchar, " + " serialized_value blob " + ") " + "WITH "
+ " gc_grace_seconds = " + gc_grace_secondsLong + " AND default_time_to_live = " + defaultTTLLong
+ " AND caching = '" + caching + "' AND " + " compaction = {'class':'LeveledCompactionStrategy'};";
cassandraSession.execute(query);
}
@Override
protected Serializable doCreate(Session session) {
SimpleSession ss = assertSimpleSession(session);
Serializable timeUuid = generateSessionId(session);
assignSessionId(ss, timeUuid);
save(ss);
return timeUuid;
}
@Override
protected Session doReadSession(Serializable sessionId) {
long startTime = System.currentTimeMillis();
if (CASSANDRA_LOGGER.isDebugEnabled()) {
CASSANDRA_LOGGER.logDebug("In the doReadSession()..");
CASSANDRA_LOGGER.logDebug("The start time is " + startTime + " ms");
}
// put a not-null & not-empty check
if (sessionId != null && !sessionId.equals("")) {
String id = sessionId.toString();
PreparedStatement ps = prepareReadStatement();
/*
* String query = "SELECT * from " + tableName + " where id = ?";
* PreparedStatement ps = cassandraSession.prepare(query);
*/
BoundStatement bs = new BoundStatement(ps);
bs.bind(id);
if (readConsistencyLevel == null) {
readConsistencyLevel = DEFAULT_CONSISTENCY_LEVEL;
}
bs.setConsistencyLevel(ConsistencyLevel.valueOf(readConsistencyLevel));
ResultSet results = cassandraSession.execute(bs);
for (Row row : results) {
String rowId = row.getString("id");
if (id.equals(rowId)) {
ByteBuffer buffer = row.getBytes("serialized_value");
if (buffer != null) {
byte[] bytes = new byte[buffer.remaining()];
buffer.get(bytes);
return serializer.deserialize(bytes);
}
}
}
}
long endTime = System.currentTimeMillis();
long timeTaken = endTime - startTime;
if (CASSANDRA_LOGGER.isDebugEnabled()) {
CASSANDRA_LOGGER.logDebug("The total time taken is " + timeTaken + " ms");
}
return null;
}
private PreparedStatement prepareReadStatement() {
if (this.readPreparedStatement == null) {
String query = "SELECT * from " + tableName + " where id = ?";
this.readPreparedStatement = cassandraSession.prepare(query);
}
return this.readPreparedStatement;
}
// In CQL, insert and update are effectively the same, so we can use a single
// query for both:
protected void save(SimpleSession ss) {
// long timeoutInSeconds = ss.getTimeout() / 1000;
/*
* String query = "UPDATE " + tableName + " SET " + "start_ts = ?, " +
* "stop_ts = ?, " + "last_access_ts = ?, " + "timeout = ?, " + "expired = ?, "
* + "host = ?, " + "serialized_value = ? " + "WHERE " + "id = ?";
* PreparedStatement ps = cassandraSession.prepare(query);
*/
long startTime = System.currentTimeMillis();
if (CASSANDRA_LOGGER.isDebugEnabled()) {
CASSANDRA_LOGGER.logDebug("In the save()..");
CASSANDRA_LOGGER.logDebug("The start time is " + startTime + " ms");
}
PreparedStatement ps = prepareSaveStatement();
BoundStatement bs = new BoundStatement(ps);
byte[] serialized = serializer.serialize(ss);
ByteBuffer bytes = ByteBuffer.wrap(serialized);
bs.bind(ss.getStartTimestamp(), ss.getStopTimestamp() != null ? ss.getStartTimestamp() : null,
ss.getLastAccessTime(), ss.getTimeout(), ss.isExpired(), ss.getHost(), bytes, ss.getId().toString());
if (writeConsistencyLevel == null) {
writeConsistencyLevel = DEFAULT_CONSISTENCY_LEVEL;
}
bs.setConsistencyLevel(ConsistencyLevel.valueOf(writeConsistencyLevel));
cassandraSession.execute(bs);
long endTime = System.currentTimeMillis();
long timeTaken = endTime - startTime;
if (CASSANDRA_LOGGER.isDebugEnabled()) {
CASSANDRA_LOGGER.logDebug("The total time taken is " + timeTaken + " ms");
}
}
private PreparedStatement prepareSaveStatement() {
if (this.savePreparedStatement == null) {
String query = "UPDATE " + tableName + " SET " + "start_ts = ?, " + "stop_ts = ?, " + "last_access_ts = ?, "
+ "timeout = ?, " + "expired = ?, " + "host = ?, " + "serialized_value = ? " + "WHERE " + "id = ?";
this.savePreparedStatement = cassandraSession.prepare(query);
}
return this.savePreparedStatement;
}
public void update(Session session) throws UnknownSessionException {
SimpleSession ss = assertSimpleSession(session);
save(ss);
}
public void delete(Session session) {
/*
* String query = "DELETE from " + tableName + " where id = ?";
* PreparedStatement ps = cassandraSession.prepare(query);
*/
long startTime = System.currentTimeMillis();
if (CASSANDRA_LOGGER.isDebugEnabled()) {
CASSANDRA_LOGGER.logDebug("In the delete()..");
CASSANDRA_LOGGER.logDebug("The start time is " + startTime + " ms");
}
PreparedStatement ps = prepareDeleteStatement();
BoundStatement bs = new BoundStatement(ps);
bs.bind(session.getId().toString());
cassandraSession.execute(bs);
long endTime = System.currentTimeMillis();
long timeTaken = endTime - startTime;
if (CASSANDRA_LOGGER.isDebugEnabled()) {
CASSANDRA_LOGGER.logDebug("The total time taken is " + timeTaken + " ms");
}
}
private PreparedStatement prepareDeleteStatement() {
if (this.deletePreparedStatement == null) {
String query = "DELETE from " + tableName + " where id = ?";
this.deletePreparedStatement = cassandraSession.prepare(query);
}
return this.deletePreparedStatement;
}
public Collection<Session> getActiveSessions() {
return Collections.emptyList();
}
}
答案 0 :(得分：0)