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package bjc.utils.cli;
/**
* Generic implementation of a help topic.
*
* @author ben
*/
public class GenericHelp implements CommandHelp {
/* The strings for this help topic. */
private final String summary;
private final String description;
/**
* Create a new help topic.
*
* @param summary
* The summary of this help topic.
*
* @param description
* The description of this help topic, or null if this help
* topic doesn't have a more detailed description.
*/
public GenericHelp(final String summary, final String description) {
if (summary == null) {
throw new NullPointerException("Help summary must be non-null");
}
this.summary = summary;
this.description = description;
}
@Override
public String getDescription() {
if (description == null) {
return summary;
}
return description;
}
@Override
public String getSummary() {
return summary;
}
@Override
public String toString() {
final StringBuilder builder = new StringBuilder();
builder.append("GenericHelp [");
if (summary != null) {
builder.append("summary=");
builder.append(summary);
}
if (description != null) {
builder.append(", ");
builder.append("description=");
builder.append(description);
}
builder.append("]");
return builder.toString();
}
}
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