Example usage for org.objectweb.asm MethodVisitor visitInsn

Introduction

In this page you can find the example usage for org.objectweb.asm MethodVisitor visitInsn.

Prototype

public void visitInsn(final int opcode) 

Source Link

Document

Visits a zero operand instruction.

Usage

From source file:com.google.gwtorm.jdbc.AccessGen.java

License:Apache License

private void implementMissingGetString(final String methodName, final String why) {
    final MethodVisitor mv = cw.visitMethod(ACC_PUBLIC | ACC_FINAL, methodName,
            Type.getMethodDescriptor(Type.getType(String.class), new Type[] {}), null, null);
    mv.visitCode();//from   ww  w.  jav  a  2s.c  o m
    throwUnsupported(mv, model.getMethodName() + " does not support " + why);
    mv.visitInsn(RETURN);
    mv.visitMaxs(-1, -1);
    mv.visitEnd();
}

---

From source file:com.google.gwtorm.jdbc.AccessGen.java

License:Apache License

private void throwUnsupported(final MethodVisitor mv, final String message) {
    final Type eType = Type.getType(UnsupportedOperationException.class);
    mv.visitTypeInsn(NEW, eType.getInternalName());
    mv.visitInsn(DUP);
    mv.visitLdcInsn(message);/*  w w w . j  a  v a  2 s.  c o m*/
    mv.visitMethodInsn(INVOKESPECIAL, eType.getInternalName(), "<init>",
            Type.getMethodDescriptor(Type.VOID_TYPE, new Type[] { Type.getType(String.class) }));
    mv.visitInsn(ATHROW);
}

---

From source file:com.google.gwtorm.jdbc.AccessGen.java

License:Apache License

private void implementPrimaryKey() {
    final KeyModel pk = model.getPrimaryKey();
    final MethodVisitor mv = cw.visitMethod(ACC_PUBLIC | ACC_FINAL, "primaryKey",
            Type.getMethodDescriptor(Type.getType(Key.class), new Type[] { Type.getType(Object.class) }), null,
            null);/*from  w  w  w .  j  a  v a 2s. co m*/
    mv.visitCode();
    if (pk != null && pk.getField().isNested()) {
        final ColumnModel pkf = pk.getField();
        mv.visitVarInsn(ALOAD, 1);
        mv.visitTypeInsn(CHECKCAST, entityType.getInternalName());
        mv.visitFieldInsn(GETFIELD, entityType.getInternalName(), pkf.getFieldName(),
                CodeGenSupport.toType(pkf).getDescriptor());
    } else {
        mv.visitInsn(ACONST_NULL);
    }
    mv.visitInsn(ARETURN);
    mv.visitMaxs(-1, -1);
    mv.visitEnd();
}

---

From source file:com.google.gwtorm.jdbc.AccessGen.java

License:Apache License

private void implementGetOne() {
    final KeyModel pk = model.getPrimaryKey();

    final MethodVisitor mv = cw.visitMethod(ACC_PUBLIC | ACC_FINAL, "get",
            Type.getMethodDescriptor(Type.getType(Object.class), new Type[] { Type.getType(Key.class) }), null,
            new String[] { Type.getType(OrmException.class).getInternalName() });
    mv.visitCode();/*from  ww  w  . ja v a  2s.c  o m*/
    if (pk != null && pk.getField().isNested()) {
        final Type keyType = CodeGenSupport.toType(pk.getField());
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitTypeInsn(CHECKCAST, keyType.getInternalName());
        mv.visitMethodInsn(INVOKEVIRTUAL, implTypeName, pk.getName(),
                Type.getMethodDescriptor(entityType, new Type[] { keyType }));
        mv.visitInsn(ARETURN);
    } else {
        throwUnsupported(mv, model.getMethodName() + " does not support get(Key)");
    }
    mv.visitMaxs(-1, -1);
    mv.visitEnd();
}

---

From source file:com.google.gwtorm.jdbc.AccessGen.java

License:Apache License

private void implementNewEntityInstance() {
    final MethodVisitor mv = cw.visitMethod(ACC_PUBLIC | ACC_FINAL, "newEntityInstance",
            Type.getMethodDescriptor(Type.getType(Object.class), new Type[] {}), null, null);
    mv.visitCode();// ww w . j  a v  a 2 s . co m
    mv.visitTypeInsn(NEW, entityType.getInternalName());
    mv.visitInsn(DUP);
    mv.visitMethodInsn(INVOKESPECIAL, entityType.getInternalName(), "<init>",
            Type.getMethodDescriptor(Type.VOID_TYPE, new Type[] {}));
    mv.visitInsn(ARETURN);
    mv.visitMaxs(-1, -1);
    mv.visitEnd();
}

---

From source file:com.google.gwtorm.jdbc.AccessGen.java

License:Apache License

private void implementBindOne(final DmlType type) {
    final MethodVisitor mv = cw.visitMethod(ACC_PUBLIC | ACC_FINAL, type.methodName,
            Type.getMethodDescriptor(Type.VOID_TYPE,
                    new Type[] { Type.getType(PreparedStatement.class), Type.getType(Object.class) }),
            null, new String[] { Type.getType(SQLException.class).getInternalName() });
    mv.visitCode();//from   www  .j  a  v a  2s  . c  o  m

    if (type != DmlType.INSERT && model.getPrimaryKey() == null) {
        throwUnsupported(mv, model.getMethodName() + " has no primary key");
        mv.visitInsn(RETURN);
        mv.visitMaxs(-1, -1);
        mv.visitEnd();
    }

    mv.visitVarInsn(ALOAD, 2);
    mv.visitTypeInsn(CHECKCAST, entityType.getInternalName());
    mv.visitVarInsn(ASTORE, 2);

    final CodeGenSupport cgs = new CodeGenSupport(mv);
    cgs.setEntityType(entityType);

    for (final ColumnModel col : model.getRowVersionColumns()) {
        cgs.setFieldReference(col);
        cgs.fieldSetBegin();
        cgs.pushFieldValue();
        mv.visitInsn(ICONST_1);
        mv.visitInsn(IADD);
        cgs.fieldSetEnd();
    }
    cgs.resetColumnIndex(0);

    if (type != DmlType.DELETE) {
        final List<ColumnModel> cols = new ArrayList<ColumnModel>();
        cols.addAll(model.getDependentFields());
        cols.addAll(model.getRowVersionFields());
        for (final ColumnModel field : cols) {
            doBindOne(mv, cgs, field);
        }
    }

    for (final ColumnModel col : model.getPrimaryKeyColumns()) {
        cgs.setFieldReference(col);
        dialect.getSqlTypeInfo(col).generatePreparedStatementSet(cgs);
    }
    if (type != DmlType.INSERT) {
        for (final ColumnModel col : model.getRowVersionColumns()) {
            cgs.setFieldReference(col);
            cgs.pushSqlHandle();
            cgs.pushColumnIndex();
            cgs.pushFieldValue();
            mv.visitInsn(ICONST_1);
            mv.visitInsn(ISUB);
            cgs.invokePreparedStatementSet("Int");
        }
    }

    mv.visitInsn(RETURN);
    mv.visitMaxs(-1, -1);
    mv.visitEnd();
}

---

From source file:com.google.gwtorm.jdbc.AccessGen.java

License:Apache License

private void implementBindOneFetch() {
    final MethodVisitor mv = cw.visitMethod(ACC_PUBLIC | ACC_FINAL, "bindOneFetch",
            Type.getMethodDescriptor(Type.VOID_TYPE,
                    new Type[] { Type.getType(ResultSet.class), Type.getType(Object.class) }),
            null, new String[] { Type.getType(SQLException.class).getInternalName() });
    mv.visitCode();/*from w w w.  ja v  a  2 s  .  c  om*/

    mv.visitVarInsn(ALOAD, 2);
    mv.visitTypeInsn(CHECKCAST, entityType.getInternalName());
    mv.visitVarInsn(ASTORE, 2);

    final CodeGenSupport cgs = new CodeGenSupport(mv);
    cgs.setEntityType(entityType);

    if (model.getPrimaryKey() != null && model.getPrimaryKey().getField().isNested()) {
        final ColumnModel pkf = model.getPrimaryKey().getField();
        final Type vType = CodeGenSupport.toType(pkf);
        final int oldIdx = cgs.getColumnIndex();
        cgs.setFieldReference(pkf);
        cgs.fieldSetBegin();
        mv.visitTypeInsn(NEW, vType.getInternalName());
        mv.visitInsn(DUP);
        mv.visitMethodInsn(INVOKESPECIAL, vType.getInternalName(), "<init>",
                Type.getMethodDescriptor(Type.VOID_TYPE, new Type[] {}));
        cgs.fieldSetEnd();
        cgs.resetColumnIndex(oldIdx);
    }

    final List<ColumnModel> cols = new ArrayList<ColumnModel>();
    cols.addAll(model.getDependentFields());
    cols.addAll(model.getRowVersionFields());
    cols.addAll(model.getPrimaryKeyColumns());
    for (final ColumnModel field : cols) {
        doFetchOne(mv, cgs, field, -1);
    }

    mv.visitInsn(RETURN);
    mv.visitMaxs(-1, -1);
    mv.visitEnd();
}

---

From source file:com.google.gwtorm.jdbc.AccessGen.java

License:Apache License

private void doFetchOne(final MethodVisitor mv, final CodeGenSupport cgs, final ColumnModel field,
        final int reportLiveInto) {
    if (field.isNested()) {
        int oldIdx = cgs.getColumnIndex();
        final Type vType = CodeGenSupport.toType(field);
        final int livecnt;

        if (field.isNotNull()) {
            livecnt = -1;/*from  www.java 2 s.co  m*/
        } else {
            livecnt = cgs.newLocal();
            cgs.push(0);
            mv.visitVarInsn(ISTORE, livecnt);
        }

        cgs.setFieldReference(field);
        cgs.fieldSetBegin();
        mv.visitTypeInsn(NEW, vType.getInternalName());
        mv.visitInsn(DUP);
        mv.visitMethodInsn(INVOKESPECIAL, vType.getInternalName(), "<init>",
                Type.getMethodDescriptor(Type.VOID_TYPE, new Type[] {}));
        cgs.fieldSetEnd();

        cgs.resetColumnIndex(oldIdx);
        for (final ColumnModel c : field.getNestedColumns()) {
            doFetchOne(mv, cgs, c, livecnt);
        }

        if (livecnt >= 0) {
            oldIdx = cgs.getColumnIndex();

            final Label islive = new Label();
            mv.visitVarInsn(ILOAD, livecnt);
            mv.visitJumpInsn(IFNE, islive);
            cgs.setFieldReference(field);
            cgs.fieldSetBegin();
            mv.visitInsn(ACONST_NULL);
            cgs.fieldSetEnd();

            if (reportLiveInto >= 0) {
                final Label end = new Label();
                mv.visitJumpInsn(GOTO, end);
                mv.visitLabel(islive);
                mv.visitIincInsn(reportLiveInto, 1);
                mv.visitLabel(end);
            } else {
                mv.visitLabel(islive);
            }

            cgs.resetColumnIndex(oldIdx);
            cgs.freeLocal(livecnt);
        }

    } else {
        final int dupTo;
        if (reportLiveInto >= 0 && CodeGenSupport.toType(field).getSort() == Type.OBJECT) {
            dupTo = cgs.newLocal();
        } else {
            dupTo = -1;
        }

        cgs.setFieldReference(field);
        cgs.setDupOnFieldSetEnd(dupTo);
        dialect.getSqlTypeInfo(field).generateResultSetGet(cgs);

        if (reportLiveInto >= 0) {
            final Label wasnull = new Label();
            if (dupTo >= 0) {
                mv.visitVarInsn(ALOAD, dupTo);
                mv.visitJumpInsn(IFNULL, wasnull);
                cgs.freeLocal(dupTo);
            } else {
                cgs.pushSqlHandle();
                mv.visitMethodInsn(INVOKEINTERFACE, Type.getType(ResultSet.class).getInternalName(), "wasNull",
                        Type.getMethodDescriptor(Type.BOOLEAN_TYPE, new Type[] {}));
                mv.visitJumpInsn(IFNE, wasnull);
            }
            mv.visitIincInsn(reportLiveInto, 1);
            mv.visitLabel(wasnull);
        }
    }
}

---

From source file:com.google.gwtorm.jdbc.AccessGen.java

License:Apache License

private void implementKeyQuery(final KeyModel info) {
    final Type keyType = CodeGenSupport.toType(info.getField());
    final StringBuilder query = new StringBuilder();
    query.append(model.getSelectSql(dialect, REL_ALIAS));
    query.append(" WHERE ");
    int nth = 1;/*  ww w  .j ava 2s.co  m*/
    for (final Iterator<ColumnModel> i = info.getAllLeafColumns().iterator(); i.hasNext();) {
        final ColumnModel c = i.next();
        query.append(REL_ALIAS);
        query.append('.');
        query.append(c.getColumnName());
        query.append('=');
        query.append(dialect.getParameterPlaceHolder(nth++));
        if (i.hasNext()) {
            query.append(" AND ");
        }
    }

    final MethodVisitor mv = cw.visitMethod(ACC_PUBLIC | ACC_FINAL, info.getName(),
            Type.getMethodDescriptor(entityType, new Type[] { keyType }), null,
            new String[] { Type.getType(OrmException.class).getInternalName() });
    mv.visitCode();

    final int keyvar = 1, psvar = keyvar + keyType.getSize();
    mv.visitVarInsn(ALOAD, 0);
    mv.visitLdcInsn(query.toString());
    mv.visitMethodInsn(INVOKEVIRTUAL, superTypeName, "prepareStatement", Type.getMethodDescriptor(
            Type.getType(PreparedStatement.class), new Type[] { Type.getType(String.class) }));
    mv.visitVarInsn(ASTORE, psvar);

    final CodeGenSupport cgs = new CodeGenSupport(mv) {
        @Override
        public void pushSqlHandle() {
            mv.visitVarInsn(ALOAD, psvar);
        }

        @Override
        public void pushFieldValue() {
            appendGetField(getFieldReference());
        }

        @Override
        protected void appendGetField(final ColumnModel c) {
            if (c.getParent() == null) {
                loadVar(keyType, keyvar);
            } else {
                super.appendGetField(c);
            }
        }
    };
    for (final ColumnModel c : info.getAllLeafColumns()) {
        cgs.setFieldReference(c);
        dialect.getSqlTypeInfo(c).generatePreparedStatementSet(cgs);
    }

    mv.visitVarInsn(ALOAD, 0);
    mv.visitVarInsn(ALOAD, psvar);
    mv.visitMethodInsn(INVOKEVIRTUAL, superTypeName, "queryOne", Type.getMethodDescriptor(
            Type.getType(Object.class), new Type[] { Type.getType(PreparedStatement.class) }));
    mv.visitTypeInsn(CHECKCAST, entityType.getInternalName());
    mv.visitInsn(ARETURN);
    mv.visitMaxs(-1, -1);
    mv.visitEnd();
}

---

From source file:com.google.gwtorm.jdbc.AccessGen.java

License:Apache License

private void overrideGetMany() {
    final KeyModel pk = model.getPrimaryKey();
    final StringBuilder query = new StringBuilder();
    query.append(model.getSelectSql(dialect, REL_ALIAS));
    query.append(" WHERE ");
    final ColumnModel pkcol = pk.getAllLeafColumns().iterator().next();
    query.append(REL_ALIAS);//from  ww  w .jav a2  s.c o  m
    query.append('.');
    query.append(pkcol.getColumnName());
    query.append(" IN");

    final MethodVisitor mv = cw.visitMethod(ACC_PUBLIC | ACC_FINAL, "getBySqlIn",
            Type.getMethodDescriptor(Type.getType(com.google.gwtorm.server.ResultSet.class),
                    new Type[] { Type.getType(Collection.class) }),
            null, new String[] { Type.getType(OrmException.class).getInternalName() });
    mv.visitCode();

    final int keyset = 1;
    final int psvar = 2;
    final int itrvar = 3;
    final int colvar = 4;
    final int keyvar = 5;

    mv.visitVarInsn(ALOAD, 0);
    mv.visitLdcInsn(query.toString());
    mv.visitVarInsn(ALOAD, keyset);
    mv.visitMethodInsn(INVOKEVIRTUAL, superTypeName, "prepareBySqlIn",
            Type.getMethodDescriptor(Type.getType(PreparedStatement.class),
                    new Type[] { Type.getType(String.class), Type.getType(Collection.class) }));
    mv.visitVarInsn(ASTORE, psvar);

    mv.visitVarInsn(ALOAD, keyset);
    mv.visitMethodInsn(INVOKEINTERFACE, Type.getInternalName(Collection.class), "iterator",
            Type.getMethodDescriptor(Type.getType(Iterator.class), new Type[] {}));
    mv.visitVarInsn(ASTORE, itrvar);

    mv.visitInsn(ICONST_1);
    mv.visitVarInsn(ISTORE, colvar);

    final Label endbind = new Label();
    final Label again = new Label();
    mv.visitLabel(again);
    mv.visitVarInsn(ALOAD, itrvar);
    mv.visitMethodInsn(INVOKEINTERFACE, Type.getInternalName(Iterator.class), "hasNext",
            Type.getMethodDescriptor(Type.BOOLEAN_TYPE, new Type[] {}));
    mv.visitJumpInsn(IFEQ, endbind);

    mv.visitVarInsn(ALOAD, itrvar);
    mv.visitMethodInsn(INVOKEINTERFACE, Type.getInternalName(Iterator.class), "next",
            Type.getMethodDescriptor(Type.getType(Object.class), new Type[] {}));
    mv.visitTypeInsn(CHECKCAST, CodeGenSupport.toType(pk.getField()).getInternalName());
    mv.visitVarInsn(ASTORE, keyvar);

    final CodeGenSupport cgs = new CodeGenSupport(mv) {
        @Override
        public void pushSqlHandle() {
            mv.visitVarInsn(ALOAD, psvar);
        }

        @Override
        public void pushFieldValue() {
            appendGetField(getFieldReference());
        }

        @Override
        public void pushColumnIndex() {
            mv.visitVarInsn(ILOAD, colvar);
        }

        @Override
        protected void appendGetField(final ColumnModel c) {
            if (c.getParent() == null) {
                mv.visitVarInsn(ALOAD, keyvar);
            } else {
                super.appendGetField(c);
            }
        }
    };

    cgs.setFieldReference(pkcol);
    dialect.getSqlTypeInfo(pkcol).generatePreparedStatementSet(cgs);
    mv.visitIincInsn(colvar, 1);
    mv.visitJumpInsn(GOTO, again);

    mv.visitLabel(endbind);
    mv.visitVarInsn(ALOAD, 0);
    mv.visitVarInsn(ALOAD, psvar);
    mv.visitMethodInsn(INVOKEVIRTUAL, superTypeName, "queryList",
            Type.getMethodDescriptor(Type.getType(com.google.gwtorm.server.ResultSet.class),
                    new Type[] { Type.getType(PreparedStatement.class) }));
    mv.visitInsn(ARETURN);
    mv.visitMaxs(-1, -1);
    mv.visitEnd();
}

---

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