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A general programming library in Java/Android. It's easy to learn and simple to use with concise and powerful APIs.
/*
* Copyright (C) 2015 HaiYang Li
*
* 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 com.landawn.abacus.type;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.Writer;
import java.lang.reflect.Constructor;
import java.lang.reflect.Modifier;
import java.sql.Blob;
import java.sql.CallableStatement;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import com.landawn.abacus.annotation.SuppressFBWarnings;
import com.landawn.abacus.exception.UncheckedSQLException;
import com.landawn.abacus.parser.SerializationConfig;
import com.landawn.abacus.util.CharacterWriter;
import com.landawn.abacus.util.ClassUtil;
import com.landawn.abacus.util.IOUtil;
import com.landawn.abacus.util.N;
/**
* The InputStream must be encoded by base64.
*
* @author Haiyang Li
* @since 0.8
*/
@SuppressWarnings("java:S2160")
public class InputStreamType extends AbstractType {
public static final String INPUT_STREAM = InputStream.class.getSimpleName();
private final Class typeClass;
private final Constructor bytesConstructor;
private final Constructor streamConstructor;
InputStreamType() {
this(INPUT_STREAM);
}
InputStreamType(String typeName) {
super(typeName);
this.typeClass = InputStream.class;
this.bytesConstructor = null;
this.streamConstructor = null;
}
InputStreamType(Class cls) {
super(ClassUtil.getSimpleClassName(cls));
this.typeClass = cls;
if (Modifier.isAbstract(cls.getModifiers())) {
this.bytesConstructor = null;
this.streamConstructor = null;
} else {
this.bytesConstructor = ClassUtil.getDeclaredConstructor(cls, byte[].class);
this.streamConstructor = ClassUtil.getDeclaredConstructor(cls, InputStream.class);
}
}
/**
*
*
* @return
*/
@Override
public Class clazz() {
return typeClass;
}
/**
* Checks if is input stream.
*
* @return true, if is input stream
*/
@Override
public boolean isInputStream() {
return true;
}
/**
*
* @param x
* @return
*/
@Override
public String stringOf(InputStream x) {
return x == null ? null : N.base64Encode(IOUtil.readAllBytes(x));
}
/**
*
* @param str
* @return
*/
@Override
public InputStream valueOf(String str) {
if (str == null) {
return null;
}
if (bytesConstructor != null) {
return (InputStream) ClassUtil.invokeConstructor(bytesConstructor, N.base64Decode(str)); //NOSONAR
} else if (streamConstructor != null) {
return (InputStream) ClassUtil.invokeConstructor(streamConstructor, new ByteArrayInputStream(N.base64Decode(str)));
} else {
return new ByteArrayInputStream(N.base64Decode(str));
}
}
/**
*
* @param obj
* @return
*/
@SuppressFBWarnings
@Override
public InputStream valueOf(final Object obj) {
if (obj == null) {
return null;
} else if (obj instanceof Blob blob) {
try {
return blob.getBinaryStream();
} catch (SQLException e) {
throw new UncheckedSQLException(e);
}
} else {
return valueOf(N.typeOf(obj.getClass()).stringOf(obj));
}
}
/**
*
* @param rs
* @param columnIndex
* @return
* @throws SQLException the SQL exception
*/
@Override
public InputStream get(ResultSet rs, int columnIndex) throws SQLException {
return rs.getBinaryStream(columnIndex);
}
/**
*
* @param rs
* @param columnLabel
* @return
* @throws SQLException the SQL exception
*/
@Override
public InputStream get(ResultSet rs, String columnLabel) throws SQLException {
return rs.getBinaryStream(columnLabel);
}
/**
*
* @param stmt
* @param columnIndex
* @param x
* @throws SQLException the SQL exception
*/
@Override
public void set(PreparedStatement stmt, int columnIndex, InputStream x) throws SQLException {
stmt.setBinaryStream(columnIndex, x);
}
/**
*
* @param stmt
* @param parameterName
* @param x
* @throws SQLException the SQL exception
*/
@Override
public void set(CallableStatement stmt, String parameterName, InputStream x) throws SQLException {
stmt.setBinaryStream(parameterName, x);
}
/**
*
* @param stmt
* @param columnIndex
* @param x
* @param sqlTypeOrLength
* @throws SQLException the SQL exception
*/
@Override
public void set(PreparedStatement stmt, int columnIndex, InputStream x, int sqlTypeOrLength) throws SQLException {
stmt.setBinaryStream(columnIndex, x, sqlTypeOrLength);
}
/**
*
* @param stmt
* @param parameterName
* @param x
* @param sqlTypeOrLength
* @throws SQLException the SQL exception
*/
@Override
public void set(CallableStatement stmt, String parameterName, InputStream x, int sqlTypeOrLength) throws SQLException {
stmt.setBinaryStream(parameterName, x, sqlTypeOrLength);
}
/**
*
* @param writer
* @param t
* @throws IOException Signals that an I/O exception has occurred.
*/
@Override
public void write(Writer writer, InputStream t) throws IOException {
if (t == null) {
writer.write(NULL_CHAR_ARRAY);
} else {
writer.write(N.base64Encode(IOUtil.readAllBytes(t)));
}
}
/**
*
* @param writer
* @param t
* @param config
* @throws IOException Signals that an I/O exception has occurred.
*/
@Override
public void writeCharacter(CharacterWriter writer, InputStream t, SerializationConfig config) throws IOException {
if (t == null) {
writer.write(NULL_CHAR_ARRAY);
} else {
if ((config == null) || (config.getStringQuotation() == 0)) {
writer.write(N.base64Encode(IOUtil.readAllBytes(t)));
} else {
writer.write(config.getStringQuotation());
writer.write(N.base64Encode(IOUtil.readAllBytes(t)));
writer.write(config.getStringQuotation());
}
}
}
}