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package oracle.toplink.essentials.internal.expressions;
import java.io.*;
import java.math.*;
import java.util.Calendar;
import oracle.toplink.essentials.internal.databaseaccess.*;
import oracle.toplink.essentials.internal.helper.ClassConstants;
import oracle.toplink.essentials.internal.helper.ConversionManager;
/**
* <p><b>Purpose</b>: Expression Java printer.
* <p><b>Responsibilities</b>:<ul>
* <li> Print an expression in Java format.
* <li> Used in project class generation.
* </ul>
* @since TOPLink10.1.3
*/
public class ExpressionJavaPrinter {
// What we write on
protected StringWriter writer;
// ExpressionBuilder string, e.g. expBuilder
protected String builderString;
// Database platform for the project
protected DatabasePlatform platform;
public ExpressionJavaPrinter(String builderString, StringWriter writer, DatabasePlatform platform) {
this.builderString = builderString;
this.writer = writer;
this.platform = platform;
}
public String getBuilderString() {
return builderString;
}
public DatabasePlatform getPlatform() {
return platform;
}
public StringWriter getWriter() {
return writer;
}
public void printString(String value) {
getWriter().write(value);
}
//Used to convert a java object to java print format
public void printJava(Object object) {
if (object == null) {
printString("null");
} else if (object.getClass() == ClassConstants.STRING) {
printString("\"");
printString((String)object);
printString("\"");
} else if (object instanceof Calendar) {
printString("new java.util.Date(");
printString(String.valueOf(((Calendar)object).getTimeInMillis()));
printString("L)");
} else if (object.getClass() == ClassConstants.TIMESTAMP) {
printString("new java.sql.Timestamp(");
printString(String.valueOf(((java.sql.Timestamp)object).getTime()));
printString("L)");
} else if (object.getClass() == ClassConstants.SQLDATE) {
printString("new java.sql.Date(");
printString(String.valueOf(((java.sql.Date)object).getTime()));
printString("L)");
} else if (object.getClass() == ClassConstants.TIME) {
printString("new java.sql.Time(");
printString(String.valueOf(((java.sql.Time)object).getTime()));
printString("L)");
} else if (object.getClass() == ClassConstants.UTILDATE) {
printString("new java.util.Date(");
printString(String.valueOf(((java.util.Date)object).getTime()));
printString("L)");
} else if (object.getClass() == ClassConstants.BYTE) {
printByte((Byte)object);
} else if (object.getClass() == ClassConstants.APBYTE) {
printString("new byte[] {");
byte[] bytes = (byte[])object;
if (bytes.length > 0) {
printString(String.valueOf((int)bytes[0]));
for (int index = 1; index < bytes.length; index++) {
printString(",");
printString(String.valueOf((int)bytes[index]));
}
}
printString("}");
} else if (object.getClass() == ClassConstants.ABYTE) {
printString("new Byte[] {");
Byte[] bytes = (Byte[])object;
if (bytes.length > 0) {
printByte(bytes[0]);
for (int index = 1; index < bytes.length; index++) {
printString(",");
printByte(bytes[index]);
}
}
printString("}");
} else if (object.getClass() == ClassConstants.CHAR) {
printCharacter((Character)object);
} else if (object.getClass() == ClassConstants.APCHAR) {
printString("new char[] {");
char[] chars = (char[])object;
if (chars.length > 0) {
printString("'");
printString(String.valueOf(chars[0]));
printString("'");
for (int index = 1; index < chars.length; index++) {
printString(",");
printString("'");
printString(String.valueOf(chars[index]));
printString("'");
}
}
printString("}");
} else if (object.getClass() == ClassConstants.ACHAR) {
printString("new Character[] {");
Character[] chars = (Character[])object;
if (chars.length > 0) {
printCharacter(chars[0]);
for (int index = 1; index < chars.length; index++) {
printString(",");
printCharacter(chars[index]);
}
}
printString("}");
} else if (object.getClass() == ClassConstants.BIGDECIMAL) {
printString("new java.math.BigDecimal(\"");
printString(((BigDecimal)object).toString());
printString("\")");
} else if (object.getClass() == ClassConstants.BIGINTEGER) {
printString("new java.math.BigInteger(\"");
printString(((BigInteger)object).toString());
printString("\")");
} else {
printString((String)ConversionManager.getDefaultManager().convertObject(object, String.class));
}
}
public void printByte(Byte aByte) {
printString("new Byte((byte)");
printString((aByte).toString());
printString(")");
}
public void printCharacter(Character aCharacter) {
printString("new Character('");
printString((aCharacter).toString());
printString("')");
}
}
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