77 lines
2.1 KiB
Java
77 lines
2.1 KiB
Java
package org.gcube.accounting.utility.postgresql;
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import java.util.HashMap;
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import java.util.Map;
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import java.util.Set;
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import org.gcube.documentstore.records.Record;
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public class RecordToDBFields {
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protected static String getKey(String fieldName) {
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StringBuffer stringBuffer = new StringBuffer();
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int lenght = fieldName.length();
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boolean lastLowerCase = true;
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for (int i=0; i<lenght; i++) {
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Character ch = fieldName.charAt(i); /*traversing String one by one*/
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if (Character.isUpperCase(ch)) {
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if(lastLowerCase) {
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stringBuffer.append("_");
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}
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lastLowerCase = false;
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}else {
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lastLowerCase = true;
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}
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stringBuffer.append(Character.toLowerCase(ch));
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}
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return stringBuffer.toString();
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}
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protected final Class<? extends Record> clz;
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protected final String typeName;
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protected final String tableName;
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protected final Map<String, String> tableFieldToRecordField;
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protected final Map<String, String> recordFieldToTableField;
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public RecordToDBFields(String typeName, Class<? extends Record> clz) throws Exception {
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this.clz = clz;
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this.typeName = typeName;
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this.tableName = typeName.toLowerCase();
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this.tableFieldToRecordField = new HashMap<>();
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this.recordFieldToTableField = new HashMap<>();
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mapFields();
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}
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protected void mapFields() throws Exception {
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Set<String> requiredFields = clz.newInstance().getRequiredFields();
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for(String usageRecordField : requiredFields) {
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String dbField = getKey(usageRecordField);
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tableFieldToRecordField.put(dbField, usageRecordField);
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recordFieldToTableField.put(usageRecordField, dbField);
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}
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}
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public String getTableField(String recordField) {
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return recordFieldToTableField.get(recordField);
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}
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public String getRecordField(String tableField) {
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String ret = tableFieldToRecordField.get(tableField);
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if(ret==null && recordFieldToTableField.keySet().contains(tableField)) {
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ret = tableField;
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}
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return ret;
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}
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public String getTypeName() {
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return typeName;
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}
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public String getTableName() {
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return tableName;
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}
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}
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