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SoqlAttribute.java
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SoqlAttribute.java
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package cz.cvut.kbss.jopa.query.soql;
public class SoqlAttribute extends SoqlParameter {
private String value;
private boolean isNot = false;
private String operator;
private String prefix = "http://www.example.org/";
private String rdfType = "a";
private boolean isOrderBy = false;
private boolean isGroupBy = false;
public SoqlAttribute() {
super();
}
public String getValue() {
return value;
}
public void setValue(String value) {
this.value = value;
}
public boolean isNot() {
return isNot;
}
public void setNot(boolean not) {
isNot = not;
}
public void setOperator(String operator) {
this.operator = operator;
}
public String getOperator() {
return operator;
}
public void setPrefix(String prefix) {
this.prefix = prefix;
}
public String getPrefix() {
return this.prefix;
}
public void setRdfType(String rdfType) {
this.rdfType = rdfType;
}
public String getRdfType() {
return this.rdfType;
}
public boolean isOrderBy() {
return isOrderBy;
}
public void setOrderBy(boolean orderBy) {
isOrderBy = orderBy;
}
public boolean isGroupBy() {
return isGroupBy;
}
public void setGroupBy(boolean groupBy) {
isGroupBy = groupBy;
}
public boolean isFilter() {
return !operator.isEmpty() && !operator.equals("=");
}
public boolean isObject() {
return !getFirstNode().hasNextChild();
}
private boolean isValueParam() {
return !operator.isEmpty() && value.charAt(0) == ':';
}
public String getFilter() {
StringBuilder buildFilter = new StringBuilder();
if (operator.equals("LIKE")) {
buildFilter.append("regex(").append(getAsParam()).append(", ?").append(this.value.substring(1))
.append(") ");
} else {
buildFilter.append(getAsParam()).append(" ").append(this.operator).append(" ").append("?")
.append(this.value.substring(1));
}
return buildFilter.toString();
}
public String getTripplePattern() {
StringBuilder buildTP = new StringBuilder("?x ");
if (isObject()) {
buildTP.append(getRdfType()).append(" ")
.append(toIri(getFirstNode())).append(" . ");
} else {
SoqlNode pointer = getFirstNode().getChild();
StringBuilder buildParam = new StringBuilder("?");
buildParam.append(getFirstNode().getValue());
buildParam.append(pointer.getCapitalizedValue());
String param;
if (pointer.hasNextChild()) {
param = "?" + pointer.getValue();
} else {
if (isFilter()) {
param = buildParam.toString();
} else {
param = "?" + this.value.substring(1);
}
}
buildTP.append(toIri(pointer)).append(" ").append(param).append(" . ");
while (pointer.hasNextChild()) {
SoqlNode newPointer = pointer.getChild();
buildTP.append("?").append(pointer.getValue())
.append(" ").append(toIri(newPointer)).append(" ");
buildParam.append(newPointer.getCapitalizedValue());
if (newPointer.hasNextChild()) {
buildTP.append("?").append(pointer.getChild().getValue());
} else {
if (isFilter()) {
buildTP.append(buildParam);
} else {
buildTP.append("?").append(this.value.substring(1));
}
}
buildTP.append(" . ");
pointer = newPointer;
}
}
return buildTP.toString();
}
private StringBuilder toIri(SoqlNode node) {
StringBuilder sb = new StringBuilder("<");
String prefix = node.getIri().isEmpty() ? getPrefix() + node.getValue() : node.getIri();
sb.append(prefix).append(">");
return sb;
}
}