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package org.openecomp.mso.yangDecoder.transform.impl;
import org.openecomp.mso.yangDecoder.transform.api.NormalizedNodeVisitor;
import org.opendaylight.yangtools.yang.common.QName;
import org.opendaylight.yangtools.yang.data.api.schema.LeafNode;
import org.opendaylight.yangtools.yang.data.api.schema.LeafSetEntryNode;
import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
/**
* Created by 10036837 on 16-7-21.
*/
public class NormalizedNodePrinter implements NormalizedNodeVisitor {
StringBuilder result;
private static final String CODES = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
public NormalizedNodePrinter(StringBuilder result) {
this.result = result;
}
private final static String endl=System.getProperty("line.separator");
public final static String getEndl(){
return endl;
}
private static String spaces(int n) {
StringBuilder builder = new StringBuilder();
for (int i = 0; i < n; i++) {
builder.append(' ');
}
return builder.toString();
}
@Override
public void visitNode(int level, String parentPath, NormalizedNode<?, ?> normalizedNode, boolean start) {
if(normalizedNode == null)
{
return;
}
if(normalizedNode.getNodeType() == null)
{
return;
}
String localName = normalizedNode.getNodeType().getLocalName();
if (normalizedNode instanceof LeafNode || normalizedNode instanceof LeafSetEntryNode) {
if(normalizedNode.getValue() instanceof byte[]){
result.append(spaces((level-1) * 4) + "<" + localName + ">" + (normalizedNode.getValue() == null ? "" : base64Encode((byte[]) normalizedNode.getValue())) + "</" + localName + ">"+endl);
}
else {
String svalue=normalizedNode.getValue().toString();
if(normalizedNode.getValue() instanceof QName){
QName qn=(QName)normalizedNode.getValue();
svalue= qn.getLocalName();
}
result.append(spaces((level - 1) * 4) + "<" + localName + ">" + (normalizedNode.getValue() == null ? "" :svalue) + "</" + localName + ">"+endl);
}
} else {
if (start) {
if (level == 1) {
result.append(spaces((level-1) * 4) + "<" + localName + " xmlns=\"" + normalizedNode.getNodeType().getNamespace() + "\">"+endl);
} else {
result.append(spaces((level-1) * 4) + "<" + localName + ">"+endl);
}
} else {
result.append(spaces((level-1) * 4) + "</" + localName + ">"+endl);
}
}
}
private String base64Encode(byte[] in) {
StringBuilder out = new StringBuilder((in.length * 4) / 3);
int b;
for (int i = 0; i < in.length; i += 3) {
b = (in[i] & 0xFC) >> 2;
out.append(CODES.charAt(b));
b = (in[i] & 0x03) << 4;
if (i + 1 < in.length) {
b |= (in[i + 1] & 0xF0) >> 4;
out.append(CODES.charAt(b));
b = (in[i + 1] & 0x0F) << 2;
if (i + 2 < in.length) {
b |= (in[i + 2] & 0xC0) >> 6;
out.append(CODES.charAt(b));
b = in[i + 2] & 0x3F;
out.append(CODES.charAt(b));
} else {
out.append(CODES.charAt(b));
out.append('=');
}
} else {
out.append(CODES.charAt(b));
out.append("==");
}
}
return out.toString();
}
}
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