package eu.svjatoslav.commons.commandline.parameterparser;
import java.util.ArrayList;
+import java.util.Collections;
public abstract class Parameter<T> {
- /**
- * Indicates that at least one argument is mandatory for this parameter.
- */
- protected boolean mandatory;
+ public final String description;
+ public final ArrayList<String> arguments = new ArrayList<>();
+ final ArgumentCount argumentCount;
+ private final ArrayList<String> aliases = new ArrayList<>();
+ /**
+ * Indicates that at least one argument is mandatory for this parameter.
+ */
+ protected boolean mandatory;
+ /**
+ * If this parameter was present in the commandline, then this boolean will
+ * be set to <code>true</code>.
+ */
+ private boolean parameterSpecified;
+
+ public Parameter(final boolean mandatory,
+ final ArgumentCount argumentCount, final String description,
+ final String... aliases2) {
- private final ArrayList<String> aliases = new ArrayList<String>();
+ this.mandatory = mandatory;
+ this.description = description;
+ this.argumentCount = argumentCount;
- public final String description;
-
- public final ArrayList<String> arguments = new ArrayList<String>();
-
- final ArgumentCount argumentCount;
-
- /**
- * If this parameter was present in the commandline, then this boolean will
- * be set to <code>true</code>.
- */
- private boolean parameterSpecified;
-
- public Parameter(final boolean mandatory,
- final ArgumentCount argumentCount, final String description,
- final String... aliases2) {
-
- this.mandatory = mandatory;
- this.description = description;
- this.argumentCount = argumentCount;
-
- // save aliases
- for (final String alias : aliases2)
- aliases.add(alias);
-
- };
-
- public Parameter(final String description, final ArgumentCount argumentCount) {
- this.description = description;
- this.argumentCount = argumentCount;
- }
-
- @SuppressWarnings("unchecked")
- public T addAliases(final String... aliasArray) {
-
- // save aliases
- for (final String alias : aliasArray)
- aliases.add(alias);
-
- return (T) this;
- }
-
- /**
- * @param argumentString
- * argument to add
- * @return <code>true</code> if no errors were found. <code>false</code>
- * otherwise.
- */
- public boolean addArgument(final String argumentString) {
- // check if arguments are allowed for this parameter
- if (argumentCount.equals(ArgumentCount.NONE)) {
- System.out
- .println("Error! No arguments are allowed for parameters: "
- + getAliases());
- return false;
- }
-
- // check if multiple arguments are allowed
- if ((arguments.size() > 0)
- && (argumentCount.equals(ArgumentCount.SINGLE))) {
- System.out
- .println("Error! Only single argument is allowed for parameters: "
- + getAliases());
- return false;
- }
-
- if (!validate(argumentString)) {
-
- System.out.println("Error! Invalid argument \"" + argumentString
- + "\". It shall be " + describeFormat() + ".");
- return false;
-
- }
-
- arguments.add(argumentString);
-
- return true;
- }
-
- /**
- * @return Single line argument type description.
- */
- public abstract String describeFormat();
-
- public String getAliases() {
- final StringBuffer buffer = new StringBuffer();
-
- for (final String alias : aliases) {
-
- if (buffer.length() > 0)
- buffer.append(", ");
-
- buffer.append(alias);
- }
-
- return buffer.toString();
- }
-
- public String getHelp() {
- final StringBuffer buffer = new StringBuffer();
-
- // first line
- buffer.append(getAliases());
- if (!argumentCount.equals(ArgumentCount.NONE)) {
- buffer.append(" (" + describeFormat() + ")");
-
- if (argumentCount.equals(ArgumentCount.MULTI))
- buffer.append("...");
- }
- buffer.append("\n");
-
- // second line
- buffer.append(" " + description + "\n");
-
- return buffer.toString();
- }
-
- public abstract Object getValue();
-
- public boolean isMandatory() {
- return mandatory;
- }
-
- /**
- * @return the parameterSpecified
- */
- public boolean isParameterSpecified() {
- return parameterSpecified;
- }
-
- /**
- * @param alias
- * alias to check against
- * @return <code>true</code> if given alias is registered for this
- * parameter.
- */
- public boolean matchesAlias(final String alias) {
- if (aliases.contains(alias))
- return true;
-
- return false;
- }
-
- /**
- * Notifies this parameter that no more arguments will follow. This gives
- * parameter chance to verify if this is ok.
- *
- * @return <code>true</code> if no errors were found. <code>false</code>
- * otherwise.
- */
- public boolean noMoreArguments() {
-
- if ((!argumentCount.equals(ArgumentCount.NONE))
- && (arguments.isEmpty())) {
-
- System.out.println("Error! " + getAliases()
- + " require at least one following argument.");
-
- return false;
- }
- return true;
- }
-
- @SuppressWarnings("unchecked")
- public T setMandatory() {
- mandatory = true;
- return (T) this;
- }
-
- /**
- * @param parameterSpecified
- * the parameterSpecified to set
- */
- public void setParameterSpecified(final boolean parameterSpecified) {
- this.parameterSpecified = parameterSpecified;
- }
-
- /**
- * @param value
- * value to validate
- * @return <code>true</code> if value is correct, <code>false</code>
- * otherwise.
- */
- public abstract boolean validate(String value);
+ // save aliases
+ Collections.addAll(aliases, aliases2);
+
+ }
+
+ public Parameter(final String description, final ArgumentCount argumentCount) {
+ this.description = description;
+ this.argumentCount = argumentCount;
+ }
+
+ @SuppressWarnings("unchecked")
+ public T addAliases(final String... aliasArray) {
+
+ // save aliases
+ Collections.addAll(aliases, aliasArray);
+
+ return (T) this;
+ }
+
+ /**
+ * @param argumentString argument to add
+ * @return <code>true</code> if no errors were found. <code>false</code>
+ * otherwise.
+ */
+ public boolean addArgument(final String argumentString) {
+ // check if arguments are allowed for this parameter
+ if (argumentCount.equals(ArgumentCount.NONE)) {
+ System.out
+ .println("Error! No arguments are allowed for parameters: "
+ + getAliases());
+ return false;
+ }
+
+ // check if multiple arguments are allowed
+ if ((arguments.size() > 0)
+ && (argumentCount.equals(ArgumentCount.SINGLE))) {
+ System.out
+ .println("Error! Only single argument is allowed for parameters: "
+ + getAliases());
+ return false;
+ }
+
+ if (!validate(argumentString)) {
+
+ System.out.println("Error! Invalid argument \"" + argumentString
+ + "\". It shall be " + describeFormat() + ".");
+ return false;
+
+ }
+
+ arguments.add(argumentString);
+
+ return true;
+ }
+
+ /**
+ * @return Single line argument type description.
+ */
+ public abstract String describeFormat();
+
+ public String getAliases() {
+ final StringBuilder buffer = new StringBuilder();
+
+ for (final String alias : aliases) {
+
+ if (buffer.length() > 0)
+ buffer.append(", ");
+
+ buffer.append(alias);
+ }
+
+ return buffer.toString();
+ }
+
+ public String getHelp() {
+ final StringBuilder buffer = new StringBuilder();
+
+ // first line
+ buffer.append(getAliases());
+ if (!argumentCount.equals(ArgumentCount.NONE)) {
+ buffer.append(" (" + describeFormat() + ")");
+
+ if (argumentCount.equals(ArgumentCount.MULTI))
+ buffer.append("...");
+ }
+ buffer.append("\n");
+
+ // second line
+ buffer.append(" " + description + "\n");
+
+ return buffer.toString();
+ }
+
+ public abstract Object getValue();
+
+ public boolean isMandatory() {
+ return mandatory;
+ }
+
+ /**
+ * @return the parameterSpecified
+ */
+ public boolean isParameterSpecified() {
+ return parameterSpecified;
+ }
+
+ /**
+ * @param parameterSpecified the parameterSpecified to set
+ */
+ public void setParameterSpecified(final boolean parameterSpecified) {
+ this.parameterSpecified = parameterSpecified;
+ }
+
+ /**
+ * @param alias alias to check against
+ * @return <code>true</code> if given alias is registered for this
+ * parameter.
+ */
+ public boolean matchesAlias(final String alias) {
+ return aliases.contains(alias);
+
+ }
+
+ /**
+ * Notifies this parameter that no more arguments will follow. This gives
+ * parameter chance to verify if this is ok.
+ *
+ * @return <code>true</code> if no errors were found. <code>false</code>
+ * otherwise.
+ */
+ public boolean noMoreArguments() {
+
+ if ((!argumentCount.equals(ArgumentCount.NONE))
+ && (arguments.isEmpty())) {
+
+ System.out.println("Error! " + getAliases()
+ + " require at least one following argument.");
+
+ return false;
+ }
+ return true;
+ }
+
+ @SuppressWarnings("unchecked")
+ public T setMandatory() {
+ mandatory = true;
+ return (T) this;
+ }
+
+ /**
+ * @param value value to validate
+ * @return <code>true</code> if value is correct, <code>false</code>
+ * otherwise.
+ */
+ public abstract boolean validate(String value);
}
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